19780860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:124

約数の個数: 192

約数和(自身を含む): 67060224

約数和(自身を除く): 47279364

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 41, 43, 44, 51, 55, 60, 66, 68, 82, 85, 86, 102, 110, 123, 129, 132, 164, 165, 170, 172, 187, 204, 205, 215, 220, 246, 255, 258, 330, 340, 374, 410, 430, 451, 473, 492, 510, 516, 561, 615, 645, 660, 697, 731, 748, 820, 860, 902, 935, 946, 1020, 1122, 1230, 1290, 1353, 1394, 1419, 1462, 1763, 1804, 1870, 1892, 2091, 2193, 2244, 2255, 2365, 2460, 2580, 2706, 2788, 2805, 2838, 2924, 3485, 3526, 3655, 3740, 4182, 4386, 4510, 4730, 5289, 5412, 5610, 5676, 6765, 6970, 7052, 7095, 7310, 7667, 8041, 8364, 8772, 8815, 9020, 9460, 10455, 10578, 10965, 11220, 13530, 13940, 14190, 14620, 15334, 16082, 17630, 19393, 20910, 21156, 21930, 23001, 24123, 26445, 27060, 28380, 29971, 30668, 32164, 35260, 38335, 38786, 40205, 41820, 43860, 46002, 48246, 52890, 58179, 59942, 76670, 77572, 80410, 89913, 92004, 96492, 96965, 105780, 115005, 116358, 119884, 120615, 149855, 153340, 160820, 179826, 193930, 230010, 232716, 241230, 290895, 299710, 329681, 359652, 387860, 449565, 460020, 482460, 581790, 599420, 659362, 899130, 989043, 1163580, 1318724, 1648405, 1798260, 1978086, 3296810, 3956172, 4945215, 6593620, 9890430, 19780860]

約数ペア:

[(1, 19780860), (2, 9890430), (3, 6593620), (4, 4945215), (5, 3956172), (6, 3296810), (10, 1978086), (11, 1798260), (12, 1648405), (15, 1318724), (17, 1163580), (20, 989043), (22, 899130), (30, 659362), (33, 599420), (34, 581790), (41, 482460), (43, 460020), (44, 449565), (51, 387860), (55, 359652), (60, 329681), (66, 299710), (68, 290895), (82, 241230), (85, 232716), (86, 230010), (102, 193930), (110, 179826), (123, 160820), (129, 153340), (132, 149855), (164, 120615), (165, 119884), (170, 116358), (172, 115005), (187, 105780), (204, 96965), (205, 96492), (215, 92004), (220, 89913), (246, 80410), (255, 77572), (258, 76670), (330, 59942), (340, 58179), (374, 52890), (410, 48246), (430, 46002), (451, 43860), (473, 41820), (492, 40205), (510, 38786), (516, 38335), (561, 35260), (615, 32164), (645, 30668), (660, 29971), (697, 28380), (731, 27060), (748, 26445), (820, 24123), (860, 23001), (902, 21930), (935, 21156), (946, 20910), (1020, 19393), (1122, 17630), (1230, 16082), (1290, 15334), (1353, 14620), (1394, 14190), (1419, 13940), (1462, 13530), (1763, 11220), (1804, 10965), (1870, 10578), (1892, 10455), (2091, 9460), (2193, 9020), (2244, 8815), (2255, 8772), (2365, 8364), (2460, 8041), (2580, 7667), (2706, 7310), (2788, 7095), (2805, 7052), (2838, 6970), (2924, 6765), (3485, 5676), (3526, 5610), (3655, 5412), (3740, 5289), (4182, 4730), (4386, 4510)]