218363900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:435

約数の個数: 72

約数和(自身を含む): 485802240

約数和(自身を除く): 267438340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 131, 158, 211, 262, 316, 395, 422, 524, 655, 790, 844, 1055, 1310, 1580, 1975, 2110, 2620, 3275, 3950, 4220, 5275, 6550, 7900, 10349, 10550, 13100, 16669, 20698, 21100, 27641, 33338, 41396, 51745, 55282, 66676, 83345, 103490, 110564, 138205, 166690, 206980, 258725, 276410, 333380, 416725, 517450, 552820, 691025, 833450, 1034900, 1382050, 1666900, 2183639, 2764100, 4367278, 8734556, 10918195, 21836390, 43672780, 54590975, 109181950, 218363900]

約数ペア:

[(1, 218363900), (2, 109181950), (4, 54590975), (5, 43672780), (10, 21836390), (20, 10918195), (25, 8734556), (50, 4367278), (79, 2764100), (100, 2183639), (131, 1666900), (158, 1382050), (211, 1034900), (262, 833450), (316, 691025), (395, 552820), (422, 517450), (524, 416725), (655, 333380), (790, 276410), (844, 258725), (1055, 206980), (1310, 166690), (1580, 138205), (1975, 110564), (2110, 103490), (2620, 83345), (3275, 66676), (3950, 55282), (4220, 51745), (5275, 41396), (6550, 33338), (7900, 27641), (10349, 21100), (10550, 20698), (13100, 16669)]