817856980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1\times {\mathrm{1201}}^1$

素因数の和:1720

約数の個数: 48

約数和(自身を含む): 1744727040

約数和(自身を除く): 926870060

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 431, 790, 862, 1201, 1580, 1724, 2155, 2402, 4310, 4804, 6005, 8620, 12010, 24020, 34049, 68098, 94879, 136196, 170245, 189758, 340490, 379516, 474395, 517631, 680980, 948790, 1035262, 1897580, 2070524, 2588155, 5176310, 10352620, 40892849, 81785698, 163571396, 204464245, 408928490, 817856980]

約数ペア:

[(1, 817856980), (2, 408928490), (4, 204464245), (5, 163571396), (10, 81785698), (20, 40892849), (79, 10352620), (158, 5176310), (316, 2588155), (395, 2070524), (431, 1897580), (790, 1035262), (862, 948790), (1201, 680980), (1580, 517631), (1724, 474395), (2155, 379516), (2402, 340490), (4310, 189758), (4804, 170245), (6005, 136196), (8620, 94879), (12010, 68098), (24020, 34049)]