20456100

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:235

約数の個数: 216

約数和(自身を含む): 77995008

約数和(自身を除く): 57538908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 25, 28, 30, 34, 35, 36, 42, 45, 50, 51, 60, 63, 68, 70, 75, 84, 85, 90, 100, 102, 105, 119, 126, 140, 150, 153, 170, 175, 180, 191, 204, 210, 225, 238, 252, 255, 300, 306, 315, 340, 350, 357, 382, 420, 425, 450, 476, 510, 525, 573, 595, 612, 630, 700, 714, 764, 765, 850, 900, 955, 1020, 1050, 1071, 1146, 1190, 1260, 1275, 1337, 1428, 1530, 1575, 1700, 1719, 1785, 1910, 2100, 2142, 2292, 2380, 2550, 2674, 2865, 2975, 3060, 3150, 3247, 3438, 3570, 3820, 3825, 4011, 4284, 4775, 5100, 5348, 5355, 5730, 5950, 6300, 6494, 6685, 6876, 7140, 7650, 8022, 8595, 8925, 9550, 9741, 10710, 11460, 11900, 12033, 12988, 13370, 14325, 15300, 16044, 16235, 17190, 17850, 19100, 19482, 20055, 21420, 22729, 24066, 26740, 26775, 28650, 29223, 32470, 33425, 34380, 35700, 38964, 40110, 42975, 45458, 48132, 48705, 53550, 57300, 58446, 60165, 64940, 66850, 68187, 80220, 81175, 85950, 90916, 97410, 100275, 107100, 113645, 116892, 120330, 133700, 136374, 146115, 162350, 171900, 194820, 200550, 204561, 227290, 240660, 243525, 272748, 292230, 300825, 324700, 340935, 401100, 409122, 454580, 487050, 568225, 584460, 601650, 681870, 730575, 818244, 974100, 1022805, 1136450, 1203300, 1363740, 1461150, 1704675, 2045610, 2272900, 2922300, 3409350, 4091220, 5114025, 6818700, 10228050, 20456100]

約数ペア:

[(1, 20456100), (2, 10228050), (3, 6818700), (4, 5114025), (5, 4091220), (6, 3409350), (7, 2922300), (9, 2272900), (10, 2045610), (12, 1704675), (14, 1461150), (15, 1363740), (17, 1203300), (18, 1136450), (20, 1022805), (21, 974100), (25, 818244), (28, 730575), (30, 681870), (34, 601650), (35, 584460), (36, 568225), (42, 487050), (45, 454580), (50, 409122), (51, 401100), (60, 340935), (63, 324700), (68, 300825), (70, 292230), (75, 272748), (84, 243525), (85, 240660), (90, 227290), (100, 204561), (102, 200550), (105, 194820), (119, 171900), (126, 162350), (140, 146115), (150, 136374), (153, 133700), (170, 120330), (175, 116892), (180, 113645), (191, 107100), (204, 100275), (210, 97410), (225, 90916), (238, 85950), (252, 81175), (255, 80220), (300, 68187), (306, 66850), (315, 64940), (340, 60165), (350, 58446), (357, 57300), (382, 53550), (420, 48705), (425, 48132), (450, 45458), (476, 42975), (510, 40110), (525, 38964), (573, 35700), (595, 34380), (612, 33425), (630, 32470), (700, 29223), (714, 28650), (764, 26775), (765, 26740), (850, 24066), (900, 22729), (955, 21420), (1020, 20055), (1050, 19482), (1071, 19100), (1146, 17850), (1190, 17190), (1260, 16235), (1275, 16044), (1337, 15300), (1428, 14325), (1530, 13370), (1575, 12988), (1700, 12033), (1719, 11900), (1785, 11460), (1910, 10710), (2100, 9741), (2142, 9550), (2292, 8925), (2380, 8595), (2550, 8022), (2674, 7650), (2865, 7140), (2975, 6876), (3060, 6685), (3150, 6494), (3247, 6300), (3438, 5950), (3570, 5730), (3820, 5355), (3825, 5348), (4011, 5100), (4284, 4775)]