129912320

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1637}}^1$

素因数の和:1691

約数の個数: 80

約数和(自身を含む): 321729408

約数和(自身を除く): 191817088

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

約数ペア:

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