128553608

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 244647000

約数和(自身を除く): 116093392

約数列:

[1, 2, 4, 8, 101, 202, 389, 404, 409, 778, 808, 818, 1556, 1636, 3112, 3272, 39289, 41309, 78578, 82618, 157156, 159101, 165236, 314312, 318202, 330472, 636404, 1272808, 16069201, 32138402, 64276804, 128553608]

約数ペア:

[(1, 128553608), (2, 64276804), (4, 32138402), (8, 16069201), (101, 1272808), (202, 636404), (389, 330472), (404, 318202), (409, 314312), (778, 165236), (808, 159101), (818, 157156), (1556, 82618), (1636, 78578), (3112, 41309), (3272, 39289)]