890504890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^2\times {\mathrm{419}}^1$

素因数の和:715

約数の個数: 48

約数和(自身を含む): 1765501920

約数和(自身を除く): 874997030

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 419, 695, 838, 1390, 1529, 2095, 3058, 4190, 4609, 7645, 9218, 15290, 19321, 23045, 38642, 46090, 58241, 96605, 116482, 193210, 212531, 291205, 425062, 582410, 640651, 1062655, 1281302, 2125310, 3203255, 6406510, 8095499, 16190998, 40477495, 80954990, 89050489, 178100978, 445252445, 890504890]

約数ペア:

[(1, 890504890), (2, 445252445), (5, 178100978), (10, 89050489), (11, 80954990), (22, 40477495), (55, 16190998), (110, 8095499), (139, 6406510), (278, 3203255), (419, 2125310), (695, 1281302), (838, 1062655), (1390, 640651), (1529, 582410), (2095, 425062), (3058, 291205), (4190, 212531), (4609, 193210), (7645, 116482), (9218, 96605), (15290, 58241), (19321, 46090), (23045, 38642)]