31382416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 60

約数和(自身を含む): 68091996

約数和(自身を除く): 36709580

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 157, 208, 248, 314, 403, 496, 628, 806, 961, 1256, 1612, 1922, 2041, 2512, 3224, 3844, 4082, 4867, 6448, 7688, 8164, 9734, 12493, 15376, 16328, 19468, 24986, 32656, 38936, 49972, 63271, 77872, 99944, 126542, 150877, 199888, 253084, 301754, 506168, 603508, 1012336, 1207016, 1961401, 2414032, 3922802, 7845604, 15691208, 31382416]

約数ペア:

[(1, 31382416), (2, 15691208), (4, 7845604), (8, 3922802), (13, 2414032), (16, 1961401), (26, 1207016), (31, 1012336), (52, 603508), (62, 506168), (104, 301754), (124, 253084), (157, 199888), (208, 150877), (248, 126542), (314, 99944), (403, 77872), (496, 63271), (628, 49972), (806, 38936), (961, 32656), (1256, 24986), (1612, 19468), (1922, 16328), (2041, 15376), (2512, 12493), (3224, 9734), (3844, 8164), (4082, 7688), (4867, 6448)]