23121980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{521}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 55774656

約数和(自身を除く): 32652676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 317, 521, 634, 1042, 1268, 1585, 2084, 2219, 2605, 3170, 3647, 4438, 5210, 6340, 7294, 8876, 10420, 11095, 14588, 18235, 22190, 36470, 44380, 72940, 165157, 330314, 660628, 825785, 1156099, 1651570, 2312198, 3303140, 4624396, 5780495, 11560990, 23121980]

約数ペア:

[(1, 23121980), (2, 11560990), (4, 5780495), (5, 4624396), (7, 3303140), (10, 2312198), (14, 1651570), (20, 1156099), (28, 825785), (35, 660628), (70, 330314), (140, 165157), (317, 72940), (521, 44380), (634, 36470), (1042, 22190), (1268, 18235), (1585, 14588), (2084, 11095), (2219, 10420), (2605, 8876), (3170, 7294), (3647, 6340), (4438, 5210)]