91661420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{907}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 200137728

約数和(自身を除く): 108476308

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 163, 310, 326, 620, 652, 815, 907, 1630, 1814, 3260, 3628, 4535, 5053, 9070, 10106, 18140, 20212, 25265, 28117, 50530, 56234, 101060, 112468, 140585, 147841, 281170, 295682, 562340, 591364, 739205, 1478410, 2956820, 4583071, 9166142, 18332284, 22915355, 45830710, 91661420]

約数ペア:

[(1, 91661420), (2, 45830710), (4, 22915355), (5, 18332284), (10, 9166142), (20, 4583071), (31, 2956820), (62, 1478410), (124, 739205), (155, 591364), (163, 562340), (310, 295682), (326, 281170), (620, 147841), (652, 140585), (815, 112468), (907, 101060), (1630, 56234), (1814, 50530), (3260, 28117), (3628, 25265), (4535, 20212), (5053, 18140), (9070, 10106)]