20388440450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{444677}}^1$

素因数の和:444827

約数の個数: 48

約数和(自身を含む): 43670937024

約数和(自身を除く): 23282496574

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 131, 175, 262, 350, 655, 917, 1310, 1834, 3275, 4585, 6550, 9170, 22925, 45850, 444677, 889354, 2223385, 3112739, 4446770, 6225478, 11116925, 15563695, 22233850, 31127390, 58252687, 77818475, 116505374, 155636950, 291263435, 407768809, 582526870, 815537618, 1456317175, 2038844045, 2912634350, 4077688090, 10194220225, 20388440450]

約数ペア:

[(1, 20388440450), (2, 10194220225), (5, 4077688090), (7, 2912634350), (10, 2038844045), (14, 1456317175), (25, 815537618), (35, 582526870), (50, 407768809), (70, 291263435), (131, 155636950), (175, 116505374), (262, 77818475), (350, 58252687), (655, 31127390), (917, 22233850), (1310, 15563695), (1834, 11116925), (3275, 6225478), (4585, 4446770), (6550, 3112739), (9170, 2223385), (22925, 889354), (45850, 444677)]