205253758

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 320760000

約数和(自身を除く): 115506242

約数列:

[1, 2, 71, 89, 109, 142, 149, 178, 218, 298, 6319, 7739, 9701, 10579, 12638, 13261, 15478, 16241, 19402, 21158, 26522, 32482, 688771, 941531, 1153111, 1377542, 1445449, 1883062, 2306222, 2890898, 102626879, 205253758]

約数ペア:

[(1, 205253758), (2, 102626879), (71, 2890898), (89, 2306222), (109, 1883062), (142, 1445449), (149, 1377542), (178, 1153111), (218, 941531), (298, 688771), (6319, 32482), (7739, 26522), (9701, 21158), (10579, 19402), (12638, 16241), (13261, 15478)]