219776980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{354479}}^1$

素因数の和:354519

約数の個数: 24

約数和(自身を含む): 476421120

約数和(自身を除く): 256644140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 354479, 708958, 1417916, 1772395, 3544790, 7089580, 10988849, 21977698, 43955396, 54944245, 109888490, 219776980]

約数ペア:

[(1, 219776980), (2, 109888490), (4, 54944245), (5, 43955396), (10, 21977698), (20, 10988849), (31, 7089580), (62, 3544790), (124, 1772395), (155, 1417916), (310, 708958), (620, 354479)]