259824640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1637}}^1$

素因数の和:1693

約数の個数: 88

約数和(自身を含む): 643773312

約数和(自身を除く): 383948672

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, 512, 620, 640, 992, 1024, 1240, 1280, 1637, 1984, 2480, 2560, 3274, 3968, 4960, 5120, 6548, 7936, 8185, 9920, 13096, 15872, 16370, 19840, 26192, 31744, 32740, 39680, 50747, 52384, 65480, 79360, 101494, 104768, 130960, 158720, 202988, 209536, 253735, 261920, 405976, 419072, 507470, 523840, 811952, 838144, 1014940, 1047680, 1623904, 1676288, 2029880, 2095360, 3247808, 4059760, 4190720, 6495616, 8119520, 8381440, 12991232, 16239040, 25982464, 32478080, 51964928, 64956160, 129912320, 259824640]

約数ペア:

[(1, 259824640), (2, 129912320), (4, 64956160), (5, 51964928), (8, 32478080), (10, 25982464), (16, 16239040), (20, 12991232), (31, 8381440), (32, 8119520), (40, 6495616), (62, 4190720), (64, 4059760), (80, 3247808), (124, 2095360), (128, 2029880), (155, 1676288), (160, 1623904), (248, 1047680), (256, 1014940), (310, 838144), (320, 811952), (496, 523840), (512, 507470), (620, 419072), (640, 405976), (992, 261920), (1024, 253735), (1240, 209536), (1280, 202988), (1637, 158720), (1984, 130960), (2480, 104768), (2560, 101494), (3274, 79360), (3968, 65480), (4960, 52384), (5120, 50747), (6548, 39680), (7936, 32740), (8185, 31744), (9920, 26192), (13096, 19840), (15872, 16370)]