81877070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:617

約数の個数: 48

約数和(自身を含む): 163404864

約数和(自身を除く): 81527794

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 157, 242, 314, 431, 605, 785, 862, 1210, 1570, 1727, 2155, 3454, 4310, 4741, 8635, 9482, 17270, 18997, 23705, 37994, 47410, 52151, 67667, 94985, 104302, 135334, 189970, 260755, 338335, 521510, 676670, 744337, 1488674, 3721685, 7443370, 8187707, 16375414, 40938535, 81877070]

約数ペア:

[(1, 81877070), (2, 40938535), (5, 16375414), (10, 8187707), (11, 7443370), (22, 3721685), (55, 1488674), (110, 744337), (121, 676670), (157, 521510), (242, 338335), (314, 260755), (431, 189970), (605, 135334), (785, 104302), (862, 94985), (1210, 67667), (1570, 52151), (1727, 47410), (2155, 37994), (3454, 23705), (4310, 18997), (4741, 17270), (8635, 9482)]