128366840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4451}}^1$

素因数の和:4572

約数の個数: 64

約数和(自身を含む): 333365760

約数和(自身を除く): 204998920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 1030, 1442, 2060, 2884, 3605, 4120, 4451, 5768, 7210, 8902, 14420, 17804, 22255, 28840, 31157, 35608, 44510, 62314, 89020, 124628, 155785, 178040, 249256, 311570, 458453, 623140, 916906, 1246280, 1833812, 2292265, 3209171, 3667624, 4584530, 6418342, 9169060, 12836684, 16045855, 18338120, 25673368, 32091710, 64183420, 128366840]

約数ペア:

[(1, 128366840), (2, 64183420), (4, 32091710), (5, 25673368), (7, 18338120), (8, 16045855), (10, 12836684), (14, 9169060), (20, 6418342), (28, 4584530), (35, 3667624), (40, 3209171), (56, 2292265), (70, 1833812), (103, 1246280), (140, 916906), (206, 623140), (280, 458453), (412, 311570), (515, 249256), (721, 178040), (824, 155785), (1030, 124628), (1442, 89020), (2060, 62314), (2884, 44510), (3605, 35608), (4120, 31157), (4451, 28840), (5768, 22255), (7210, 17804), (8902, 14420)]