645879368

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{2003}}^1\times {\mathrm{2371}}^1$

素因数の和:4397

約数の個数: 32

約数和(自身を含む): 1283441760

約数和(自身を除く): 637562392

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 2003, 2371, 4006, 4742, 8012, 9484, 16024, 18968, 34051, 40307, 68102, 80614, 136204, 161228, 272408, 322456, 4749113, 9498226, 18996452, 37992904, 80734921, 161469842, 322939684, 645879368]

約数ペア:

[(1, 645879368), (2, 322939684), (4, 161469842), (8, 80734921), (17, 37992904), (34, 18996452), (68, 9498226), (136, 4749113), (2003, 322456), (2371, 272408), (4006, 161228), (4742, 136204), (8012, 80614), (9484, 68102), (16024, 40307), (18968, 34051)]