20201398280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1677857}}^1$

素因数の和:1677918

約数の個数: 64

約数和(自身を含む): 53154541440

約数和(自身を除く): 32953143160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 12040, 1677857, 3355714, 6711428, 8389285, 11744999, 13422856, 16778570, 23489998, 33557140, 46979996, 58724995, 67114280, 72147851, 93959992, 117449990, 144295702, 234899980, 288591404, 360739255, 469799960, 505034957, 577182808, 721478510, 1010069914, 1442957020, 2020139828, 2525174785, 2885914040, 4040279656, 5050349570, 10100699140, 20201398280]

約数ペア:

[(1, 20201398280), (2, 10100699140), (4, 5050349570), (5, 4040279656), (7, 2885914040), (8, 2525174785), (10, 2020139828), (14, 1442957020), (20, 1010069914), (28, 721478510), (35, 577182808), (40, 505034957), (43, 469799960), (56, 360739255), (70, 288591404), (86, 234899980), (140, 144295702), (172, 117449990), (215, 93959992), (280, 72147851), (301, 67114280), (344, 58724995), (430, 46979996), (602, 33557140), (860, 23489998), (1204, 16778570), (1505, 13422856), (1720, 11744999), (2408, 8389285), (3010, 6711428), (6020, 3355714), (12040, 1677857)]