18712010

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 34998912

約数和(自身を除く): 16286902

約数列:

[1, 2, 5, 10, 37, 74, 103, 185, 206, 370, 491, 515, 982, 1030, 2455, 3811, 4910, 7622, 18167, 19055, 36334, 38110, 50573, 90835, 101146, 181670, 252865, 505730, 1871201, 3742402, 9356005, 18712010]

約数ペア:

[(1, 18712010), (2, 9356005), (5, 3742402), (10, 1871201), (37, 505730), (74, 252865), (103, 181670), (185, 101146), (206, 90835), (370, 50573), (491, 38110), (515, 36334), (982, 19055), (1030, 18167), (2455, 7622), (3811, 4910)]