80870240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45949}}^1$

素因数の和:45975

約数の個数: 48

約数和(自身を含む): 208429200

約数和(自身を除く): 127558960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 45949, 91898, 183796, 229745, 367592, 459490, 505439, 735184, 918980, 1010878, 1470368, 1837960, 2021756, 2527195, 3675920, 4043512, 5054390, 7351840, 8087024, 10108780, 16174048, 20217560, 40435120, 80870240]

約数ペア:

[(1, 80870240), (2, 40435120), (4, 20217560), (5, 16174048), (8, 10108780), (10, 8087024), (11, 7351840), (16, 5054390), (20, 4043512), (22, 3675920), (32, 2527195), (40, 2021756), (44, 1837960), (55, 1470368), (80, 1010878), (88, 918980), (110, 735184), (160, 505439), (176, 459490), (220, 367592), (352, 229745), (440, 183796), (880, 91898), (1760, 45949)]