1788380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{739}}^1$

素因数の和:770

約数の個数: 36

約数和(自身を含む): 4133640

約数和(自身を除く): 2345260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 739, 1210, 1478, 2420, 2956, 3695, 7390, 8129, 14780, 16258, 32516, 40645, 81290, 89419, 162580, 178838, 357676, 447095, 894190, 1788380]

約数ペア:

[(1, 1788380), (2, 894190), (4, 447095), (5, 357676), (10, 178838), (11, 162580), (20, 89419), (22, 81290), (44, 40645), (55, 32516), (110, 16258), (121, 14780), (220, 8129), (242, 7390), (484, 3695), (605, 2956), (739, 2420), (1210, 1478)]