123822680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1637}}^1$

素因数の和:1740

約数の個数: 64

約数和(自身を含む): 292481280

約数和(自身を除く): 168658600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1220, 1240, 1637, 1891, 2440, 3274, 3782, 6548, 7564, 8185, 9455, 13096, 15128, 16370, 18910, 32740, 37820, 50747, 65480, 75640, 99857, 101494, 199714, 202988, 253735, 399428, 405976, 499285, 507470, 798856, 998570, 1014940, 1997140, 2029880, 3095567, 3994280, 6191134, 12382268, 15477835, 24764536, 30955670, 61911340, 123822680]

約数ペア:

[(1, 123822680), (2, 61911340), (4, 30955670), (5, 24764536), (8, 15477835), (10, 12382268), (20, 6191134), (31, 3994280), (40, 3095567), (61, 2029880), (62, 1997140), (122, 1014940), (124, 998570), (155, 798856), (244, 507470), (248, 499285), (305, 405976), (310, 399428), (488, 253735), (610, 202988), (620, 199714), (1220, 101494), (1240, 99857), (1637, 75640), (1891, 65480), (2440, 50747), (3274, 37820), (3782, 32740), (6548, 18910), (7564, 16370), (8185, 15128), (9455, 13096)]