68468840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2551}}^1$

素因数の和:2634

約数の個数: 64

約数和(自身を含む): 170881920

約数和(自身を除く): 102413080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1220, 1342, 2440, 2551, 2684, 3355, 5102, 5368, 6710, 10204, 12755, 13420, 20408, 25510, 26840, 28061, 51020, 56122, 102040, 112244, 140305, 155611, 224488, 280610, 311222, 561220, 622444, 778055, 1122440, 1244888, 1556110, 1711721, 3112220, 3423442, 6224440, 6846884, 8558605, 13693768, 17117210, 34234420, 68468840]

約数ペア:

[(1, 68468840), (2, 34234420), (4, 17117210), (5, 13693768), (8, 8558605), (10, 6846884), (11, 6224440), (20, 3423442), (22, 3112220), (40, 1711721), (44, 1556110), (55, 1244888), (61, 1122440), (88, 778055), (110, 622444), (122, 561220), (220, 311222), (244, 280610), (305, 224488), (440, 155611), (488, 140305), (610, 112244), (671, 102040), (1220, 56122), (1342, 51020), (2440, 28061), (2551, 26840), (2684, 25510), (3355, 20408), (5102, 13420), (5368, 12755), (6710, 10204)]