72480620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{563}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 157193568

約数和(自身を除く): 84712948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 157, 164, 205, 314, 410, 563, 628, 785, 820, 1126, 1570, 2252, 2815, 3140, 5630, 6437, 11260, 12874, 23083, 25748, 32185, 46166, 64370, 88391, 92332, 115415, 128740, 176782, 230830, 353564, 441955, 461660, 883910, 1767820, 3624031, 7248062, 14496124, 18120155, 36240310, 72480620]

約数ペア:

[(1, 72480620), (2, 36240310), (4, 18120155), (5, 14496124), (10, 7248062), (20, 3624031), (41, 1767820), (82, 883910), (157, 461660), (164, 441955), (205, 353564), (314, 230830), (410, 176782), (563, 128740), (628, 115415), (785, 92332), (820, 88391), (1126, 64370), (1570, 46166), (2252, 32185), (2815, 25748), (3140, 23083), (5630, 12874), (6437, 11260)]