20163210620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{258569}}^1$

素因数の和:259142

約数の個数: 48

約数和(自身を含む): 48478772160

約数和(自身を除く): 28315561540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 557, 1114, 2228, 2785, 3899, 5570, 7798, 11140, 15596, 19495, 38990, 77980, 258569, 517138, 1034276, 1292845, 1809983, 2585690, 3619966, 5171380, 7239932, 9049915, 18099830, 36199660, 144022933, 288045866, 576091732, 720114665, 1008160531, 1440229330, 2016321062, 2880458660, 4032642124, 5040802655, 10081605310, 20163210620]

約数ペア:

[(1, 20163210620), (2, 10081605310), (4, 5040802655), (5, 4032642124), (7, 2880458660), (10, 2016321062), (14, 1440229330), (20, 1008160531), (28, 720114665), (35, 576091732), (70, 288045866), (140, 144022933), (557, 36199660), (1114, 18099830), (2228, 9049915), (2785, 7239932), (3899, 5171380), (5570, 3619966), (7798, 2585690), (11140, 1809983), (15596, 1292845), (19495, 1034276), (38990, 517138), (77980, 258569)]