81877498

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 134784000

約数和(自身を除く): 52906502

約数列:

[1, 2, 19, 29, 38, 58, 191, 382, 389, 551, 778, 1102, 3629, 5539, 7258, 7391, 11078, 11281, 14782, 22562, 74299, 105241, 148598, 210482, 214339, 428678, 1411681, 2154671, 2823362, 4309342, 40938749, 81877498]

約数ペア:

[(1, 81877498), (2, 40938749), (19, 4309342), (29, 2823362), (38, 2154671), (58, 1411681), (191, 428678), (382, 214339), (389, 210482), (551, 148598), (778, 105241), (1102, 74299), (3629, 22562), (5539, 14782), (7258, 11281), (7391, 11078)]