657439380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{280957}}^1$

素因数の和:280985

約数の個数: 72

約数和(自身を含む): 2147642952

約数和(自身を除く): 1490203572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 280957, 561914, 842871, 1123828, 1404785, 1685742, 2528613, 2809570, 3371484, 3652441, 4214355, 5057226, 5619140, 7304882, 8428710, 10114452, 10957323, 12643065, 14609764, 16857420, 18262205, 21914646, 25286130, 32871969, 36524410, 43829292, 50572260, 54786615, 65743938, 73048820, 109573230, 131487876, 164359845, 219146460, 328719690, 657439380]

約数ペア:

[(1, 657439380), (2, 328719690), (3, 219146460), (4, 164359845), (5, 131487876), (6, 109573230), (9, 73048820), (10, 65743938), (12, 54786615), (13, 50572260), (15, 43829292), (18, 36524410), (20, 32871969), (26, 25286130), (30, 21914646), (36, 18262205), (39, 16857420), (45, 14609764), (52, 12643065), (60, 10957323), (65, 10114452), (78, 8428710), (90, 7304882), (117, 5619140), (130, 5057226), (156, 4214355), (180, 3652441), (195, 3371484), (234, 2809570), (260, 2528613), (390, 1685742), (468, 1404785), (585, 1123828), (780, 842871), (1170, 561914), (2340, 280957)]