68640740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21317}}^1$

素因数の和:21356

約数の個数: 48

約数和(自身を含む): 171908352

約数和(自身を除く): 103267612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 21317, 42634, 85268, 106585, 149219, 213170, 298438, 426340, 490291, 596876, 746095, 980582, 1492190, 1961164, 2451455, 2984380, 3432037, 4902910, 6864074, 9805820, 13728148, 17160185, 34320370, 68640740]

約数ペア:

[(1, 68640740), (2, 34320370), (4, 17160185), (5, 13728148), (7, 9805820), (10, 6864074), (14, 4902910), (20, 3432037), (23, 2984380), (28, 2451455), (35, 1961164), (46, 1492190), (70, 980582), (92, 746095), (115, 596876), (140, 490291), (161, 426340), (230, 298438), (322, 213170), (460, 149219), (644, 106585), (805, 85268), (1610, 42634), (3220, 21317)]