90617780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{1487}}^1$

素因数の和:1784

約数の個数: 48

約数和(自身を含む): 208486656

約数和(自身を除く): 117868876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 277, 554, 1108, 1385, 1487, 2770, 2974, 3047, 5540, 5948, 6094, 7435, 12188, 14870, 15235, 16357, 29740, 30470, 32714, 60940, 65428, 81785, 163570, 327140, 411899, 823798, 1647596, 2059495, 4118990, 4530889, 8237980, 9061778, 18123556, 22654445, 45308890, 90617780]

約数ペア:

[(1, 90617780), (2, 45308890), (4, 22654445), (5, 18123556), (10, 9061778), (11, 8237980), (20, 4530889), (22, 4118990), (44, 2059495), (55, 1647596), (110, 823798), (220, 411899), (277, 327140), (554, 163570), (1108, 81785), (1385, 65428), (1487, 60940), (2770, 32714), (2974, 30470), (3047, 29740), (5540, 16357), (5948, 15235), (6094, 14870), (7435, 12188)]