128964560

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:468

約数の個数: 80

約数和(自身を含む): 309355200

約数和(自身を除く): 180390640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 89, 118, 178, 236, 295, 307, 356, 445, 472, 590, 614, 712, 890, 944, 1180, 1228, 1424, 1535, 1780, 2360, 2456, 3070, 3560, 4720, 4912, 5251, 6140, 7120, 10502, 12280, 18113, 21004, 24560, 26255, 27323, 36226, 42008, 52510, 54646, 72452, 84016, 90565, 105020, 109292, 136615, 144904, 181130, 210040, 218584, 273230, 289808, 362260, 420080, 437168, 546460, 724520, 1092920, 1449040, 1612057, 2185840, 3224114, 6448228, 8060285, 12896456, 16120570, 25792912, 32241140, 64482280, 128964560]

約数ペア:

[(1, 128964560), (2, 64482280), (4, 32241140), (5, 25792912), (8, 16120570), (10, 12896456), (16, 8060285), (20, 6448228), (40, 3224114), (59, 2185840), (80, 1612057), (89, 1449040), (118, 1092920), (178, 724520), (236, 546460), (295, 437168), (307, 420080), (356, 362260), (445, 289808), (472, 273230), (590, 218584), (614, 210040), (712, 181130), (890, 144904), (944, 136615), (1180, 109292), (1228, 105020), (1424, 90565), (1535, 84016), (1780, 72452), (2360, 54646), (2456, 52510), (3070, 42008), (3560, 36226), (4720, 27323), (4912, 26255), (5251, 24560), (6140, 21004), (7120, 18113), (10502, 12280)]