64690240

素因数分解:

$2^6\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1789}}^1$

素因数の和:1919

約数の個数: 56

約数和(自身を含む): 155493720

約数和(自身を除く): 90803480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 160, 226, 320, 452, 565, 904, 1130, 1789, 1808, 2260, 3578, 3616, 4520, 7156, 7232, 8945, 9040, 14312, 17890, 18080, 28624, 35780, 36160, 57248, 71560, 114496, 143120, 202157, 286240, 404314, 572480, 808628, 1010785, 1617256, 2021570, 3234512, 4043140, 6469024, 8086280, 12938048, 16172560, 32345120, 64690240]

約数ペア:

[(1, 64690240), (2, 32345120), (4, 16172560), (5, 12938048), (8, 8086280), (10, 6469024), (16, 4043140), (20, 3234512), (32, 2021570), (40, 1617256), (64, 1010785), (80, 808628), (113, 572480), (160, 404314), (226, 286240), (320, 202157), (452, 143120), (565, 114496), (904, 71560), (1130, 57248), (1789, 36160), (1808, 35780), (2260, 28624), (3578, 18080), (3616, 17890), (4520, 14312), (7156, 9040), (7232, 8945)]