81993272

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 157021200

約数和(自身を除く): 75027928

約数列:

[1, 2, 4, 8, 61, 122, 244, 401, 419, 488, 802, 838, 1604, 1676, 3208, 3352, 24461, 25559, 48922, 51118, 97844, 102236, 168019, 195688, 204472, 336038, 672076, 1344152, 10249159, 20498318, 40996636, 81993272]

約数ペア:

[(1, 81993272), (2, 40996636), (4, 20498318), (8, 10249159), (61, 1344152), (122, 672076), (244, 336038), (401, 204472), (419, 195688), (488, 168019), (802, 102236), (838, 97844), (1604, 51118), (1676, 48922), (3208, 25559), (3352, 24461)]