20199803918

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1\times {\mathrm{1373}}^1$

素因数の和:1833

約数の個数: 64

約数和(自身を含む): 36215562240

約数和(自身を除く): 16015758322

約数列:

[1, 2, 7, 14, 31, 62, 109, 217, 218, 311, 434, 622, 763, 1373, 1526, 2177, 2746, 3379, 4354, 6758, 9611, 9641, 19222, 19282, 23653, 33899, 42563, 47306, 67487, 67798, 85126, 134974, 149657, 237293, 297941, 299314, 427003, 474586, 595882, 854006, 1047599, 1050869, 2095198, 2101738, 2989021, 4639367, 5978042, 7356083, 9278734, 13237093, 14712166, 26474186, 32475569, 46543327, 64951138, 92659651, 93086654, 185319302, 325803289, 651606578, 1442843137, 2885686274, 10099901959, 20199803918]

約数ペア:

[(1, 20199803918), (2, 10099901959), (7, 2885686274), (14, 1442843137), (31, 651606578), (62, 325803289), (109, 185319302), (217, 93086654), (218, 92659651), (311, 64951138), (434, 46543327), (622, 32475569), (763, 26474186), (1373, 14712166), (1526, 13237093), (2177, 9278734), (2746, 7356083), (3379, 5978042), (4354, 4639367), (6758, 2989021), (9611, 2101738), (9641, 2095198), (19222, 1050869), (19282, 1047599), (23653, 854006), (33899, 595882), (42563, 474586), (47306, 427003), (67487, 299314), (67798, 297941), (85126, 237293), (134974, 149657)]