420050

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:314

約数の個数: 24

約数和(自身を含む): 809472

約数和(自身を除く): 389422

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 271, 310, 542, 775, 1355, 1550, 2710, 6775, 8401, 13550, 16802, 42005, 84010, 210025, 420050]

約数ペア:

[(1, 420050), (2, 210025), (5, 84010), (10, 42005), (25, 16802), (31, 13550), (50, 8401), (62, 6775), (155, 2710), (271, 1550), (310, 1355), (542, 775)]