201130220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1019}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 431827200

約数和(自身を除く): 230696980

約数列:

[1, 2, 4, 5, 10, 20, 71, 139, 142, 278, 284, 355, 556, 695, 710, 1019, 1390, 1420, 2038, 2780, 4076, 5095, 9869, 10190, 19738, 20380, 39476, 49345, 72349, 98690, 141641, 144698, 197380, 283282, 289396, 361745, 566564, 708205, 723490, 1416410, 1446980, 2832820, 10056511, 20113022, 40226044, 50282555, 100565110, 201130220]

約数ペア:

[(1, 201130220), (2, 100565110), (4, 50282555), (5, 40226044), (10, 20113022), (20, 10056511), (71, 2832820), (139, 1446980), (142, 1416410), (278, 723490), (284, 708205), (355, 566564), (556, 361745), (695, 289396), (710, 283282), (1019, 197380), (1390, 144698), (1420, 141641), (2038, 98690), (2780, 72349), (4076, 49345), (5095, 39476), (9869, 20380), (10190, 19738)]