128912560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1091}}^1$

素因数の和:1322

約数の個数: 80

約数和(自身を含む): 344477952

約数和(自身を除く): 215565392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 211, 280, 422, 560, 844, 1055, 1091, 1477, 1688, 2110, 2182, 2954, 3376, 4220, 4364, 5455, 5908, 7385, 7637, 8440, 8728, 10910, 11816, 14770, 15274, 16880, 17456, 21820, 23632, 29540, 30548, 38185, 43640, 59080, 61096, 76370, 87280, 118160, 122192, 152740, 230201, 305480, 460402, 610960, 920804, 1151005, 1611407, 1841608, 2302010, 3222814, 3683216, 4604020, 6445628, 8057035, 9208040, 12891256, 16114070, 18416080, 25782512, 32228140, 64456280, 128912560]

約数ペア:

[(1, 128912560), (2, 64456280), (4, 32228140), (5, 25782512), (7, 18416080), (8, 16114070), (10, 12891256), (14, 9208040), (16, 8057035), (20, 6445628), (28, 4604020), (35, 3683216), (40, 3222814), (56, 2302010), (70, 1841608), (80, 1611407), (112, 1151005), (140, 920804), (211, 610960), (280, 460402), (422, 305480), (560, 230201), (844, 152740), (1055, 122192), (1091, 118160), (1477, 87280), (1688, 76370), (2110, 61096), (2182, 59080), (2954, 43640), (3376, 38185), (4220, 30548), (4364, 29540), (5455, 23632), (5908, 21820), (7385, 17456), (7637, 16880), (8440, 15274), (8728, 14770), (10910, 11816)]