18441940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4931}}^1$

素因数の和:4968

約数の個数: 48

約数和(自身を含む): 44743104

約数和(自身を除く): 26301164

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 4931, 9862, 19724, 24655, 49310, 54241, 83827, 98620, 108482, 167654, 216964, 271205, 335308, 419135, 542410, 838270, 922097, 1084820, 1676540, 1844194, 3688388, 4610485, 9220970, 18441940]

約数ペア:

[(1, 18441940), (2, 9220970), (4, 4610485), (5, 3688388), (10, 1844194), (11, 1676540), (17, 1084820), (20, 922097), (22, 838270), (34, 542410), (44, 419135), (55, 335308), (68, 271205), (85, 216964), (110, 167654), (170, 108482), (187, 98620), (220, 83827), (340, 54241), (374, 49310), (748, 24655), (935, 19724), (1870, 9862), (3740, 4931)]