256826340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{26921}}^1$

素因数の和:26989

約数の個数: 72

約数和(自身を含む): 793768248

約数和(自身を除く): 536941908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 9540, 26921, 53842, 80763, 107684, 134605, 161526, 242289, 269210, 323052, 403815, 484578, 538420, 807630, 969156, 1211445, 1426813, 1615260, 2422890, 2853626, 4280439, 4845780, 5707252, 7134065, 8560878, 12841317, 14268130, 17121756, 21402195, 25682634, 28536260, 42804390, 51365268, 64206585, 85608780, 128413170, 256826340]

約数ペア:

[(1, 256826340), (2, 128413170), (3, 85608780), (4, 64206585), (5, 51365268), (6, 42804390), (9, 28536260), (10, 25682634), (12, 21402195), (15, 17121756), (18, 14268130), (20, 12841317), (30, 8560878), (36, 7134065), (45, 5707252), (53, 4845780), (60, 4280439), (90, 2853626), (106, 2422890), (159, 1615260), (180, 1426813), (212, 1211445), (265, 969156), (318, 807630), (477, 538420), (530, 484578), (636, 403815), (795, 323052), (954, 269210), (1060, 242289), (1590, 161526), (1908, 134605), (2385, 107684), (3180, 80763), (4770, 53842), (9540, 26921)]