210301820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{2521}}^1$

素因数の和:2670

約数の個数: 48

約数和(自身を含む): 456744288

約数和(自身を除く): 246442468

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 215, 388, 430, 485, 860, 970, 1940, 2521, 4171, 5042, 8342, 10084, 12605, 16684, 20855, 25210, 41710, 50420, 83420, 108403, 216806, 244537, 433612, 489074, 542015, 978148, 1084030, 1222685, 2168060, 2445370, 4890740, 10515091, 21030182, 42060364, 52575455, 105150910, 210301820]

約数ペア:

[(1, 210301820), (2, 105150910), (4, 52575455), (5, 42060364), (10, 21030182), (20, 10515091), (43, 4890740), (86, 2445370), (97, 2168060), (172, 1222685), (194, 1084030), (215, 978148), (388, 542015), (430, 489074), (485, 433612), (860, 244537), (970, 216806), (1940, 108403), (2521, 83420), (4171, 50420), (5042, 41710), (8342, 25210), (10084, 20855), (12605, 16684)]