20975343240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1\times {\mathrm{491}}^1$

素因数の和:1052

約数の個数: 256

約数和(自身を含む): 68456171520

約数和(自身を除く): 47480828280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 43, 51, 60, 68, 85, 86, 102, 120, 129, 136, 170, 172, 204, 215, 255, 258, 340, 344, 408, 430, 487, 491, 510, 516, 645, 680, 731, 860, 974, 982, 1020, 1032, 1290, 1461, 1462, 1473, 1720, 1948, 1964, 2040, 2193, 2435, 2455, 2580, 2922, 2924, 2946, 3655, 3896, 3928, 4386, 4870, 4910, 5160, 5844, 5848, 5892, 7305, 7310, 7365, 8279, 8347, 8772, 9740, 9820, 10965, 11688, 11784, 14610, 14620, 14730, 16558, 16694, 17544, 19480, 19640, 20941, 21113, 21930, 24837, 25041, 29220, 29240, 29460, 33116, 33388, 41395, 41735, 41882, 42226, 43860, 49674, 50082, 58440, 58920, 62823, 63339, 66232, 66776, 82790, 83470, 83764, 84452, 87720, 99348, 100164, 104705, 105565, 124185, 125205, 125646, 126678, 165580, 166940, 167528, 168904, 198696, 200328, 209410, 211130, 239117, 248370, 250410, 251292, 253356, 314115, 316695, 331160, 333880, 355997, 358921, 418820, 422260, 478234, 496740, 500820, 502584, 506712, 628230, 633390, 711994, 717351, 717842, 837640, 844520, 956468, 993480, 1001640, 1067991, 1076763, 1195585, 1256460, 1266780, 1423988, 1434702, 1435684, 1779985, 1794605, 1912936, 2135982, 2153526, 2391170, 2512920, 2533560, 2847976, 2869404, 2871368, 3559970, 3586755, 3589210, 4064989, 4271964, 4307052, 4782340, 5339955, 5383815, 5738808, 7119940, 7173510, 7178420, 8129978, 8543928, 8614104, 9564680, 10282031, 10679910, 10767630, 12194967, 14239880, 14347020, 14356840, 16259956, 20324945, 20564062, 21359820, 21535260, 24389934, 28694040, 30846093, 32519912, 40649890, 41128124, 42719640, 43070520, 48779868, 51410155, 60974835, 61692186, 81299780, 82256248, 97559736, 102820310, 121949670, 123384372, 154230465, 162599560, 174794527, 205640620, 243899340, 246768744, 308460930, 349589054, 411281240, 487798680, 524383581, 616921860, 699178108, 873972635, 1048767162, 1233843720, 1398356216, 1747945270, 2097534324, 2621917905, 3495890540, 4195068648, 5243835810, 6991781080, 10487671620, 20975343240]

約数ペア:

[(1, 20975343240), (2, 10487671620), (3, 6991781080), (4, 5243835810), (5, 4195068648), (6, 3495890540), (8, 2621917905), (10, 2097534324), (12, 1747945270), (15, 1398356216), (17, 1233843720), (20, 1048767162), (24, 873972635), (30, 699178108), (34, 616921860), (40, 524383581), (43, 487798680), (51, 411281240), (60, 349589054), (68, 308460930), (85, 246768744), (86, 243899340), (102, 205640620), (120, 174794527), (129, 162599560), (136, 154230465), (170, 123384372), (172, 121949670), (204, 102820310), (215, 97559736), (255, 82256248), (258, 81299780), (340, 61692186), (344, 60974835), (408, 51410155), (430, 48779868), (487, 43070520), (491, 42719640), (510, 41128124), (516, 40649890), (645, 32519912), (680, 30846093), (731, 28694040), (860, 24389934), (974, 21535260), (982, 21359820), (1020, 20564062), (1032, 20324945), (1290, 16259956), (1461, 14356840), (1462, 14347020), (1473, 14239880), (1720, 12194967), (1948, 10767630), (1964, 10679910), (2040, 10282031), (2193, 9564680), (2435, 8614104), (2455, 8543928), (2580, 8129978), (2922, 7178420), (2924, 7173510), (2946, 7119940), (3655, 5738808), (3896, 5383815), (3928, 5339955), (4386, 4782340), (4870, 4307052), (4910, 4271964), (5160, 4064989), (5844, 3589210), (5848, 3586755), (5892, 3559970), (7305, 2871368), (7310, 2869404), (7365, 2847976), (8279, 2533560), (8347, 2512920), (8772, 2391170), (9740, 2153526), (9820, 2135982), (10965, 1912936), (11688, 1794605), (11784, 1779985), (14610, 1435684), (14620, 1434702), (14730, 1423988), (16558, 1266780), (16694, 1256460), (17544, 1195585), (19480, 1076763), (19640, 1067991), (20941, 1001640), (21113, 993480), (21930, 956468), (24837, 844520), (25041, 837640), (29220, 717842), (29240, 717351), (29460, 711994), (33116, 633390), (33388, 628230), (41395, 506712), (41735, 502584), (41882, 500820), (42226, 496740), (43860, 478234), (49674, 422260), (50082, 418820), (58440, 358921), (58920, 355997), (62823, 333880), (63339, 331160), (66232, 316695), (66776, 314115), (82790, 253356), (83470, 251292), (83764, 250410), (84452, 248370), (87720, 239117), (99348, 211130), (100164, 209410), (104705, 200328), (105565, 198696), (124185, 168904), (125205, 167528), (125646, 166940), (126678, 165580)]