64956160

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1637}}^1$

素因数の和:1689

約数の個数: 72

約数和(自身を含む): 160707456

約数和(自身を除く): 95751296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1637, 1984, 2480, 3274, 3968, 4960, 6548, 7936, 8185, 9920, 13096, 16370, 19840, 26192, 32740, 39680, 50747, 52384, 65480, 101494, 104768, 130960, 202988, 209536, 253735, 261920, 405976, 419072, 507470, 523840, 811952, 1014940, 1047680, 1623904, 2029880, 2095360, 3247808, 4059760, 6495616, 8119520, 12991232, 16239040, 32478080, 64956160]

約数ペア:

[(1, 64956160), (2, 32478080), (4, 16239040), (5, 12991232), (8, 8119520), (10, 6495616), (16, 4059760), (20, 3247808), (31, 2095360), (32, 2029880), (40, 1623904), (62, 1047680), (64, 1014940), (80, 811952), (124, 523840), (128, 507470), (155, 419072), (160, 405976), (248, 261920), (256, 253735), (310, 209536), (320, 202988), (496, 130960), (620, 104768), (640, 101494), (992, 65480), (1240, 52384), (1280, 50747), (1637, 39680), (1984, 32740), (2480, 26192), (3274, 19840), (3968, 16370), (4960, 13096), (6548, 9920), (7936, 8185)]