18741460

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8597}}^1$

素因数の和:8715

約数の個数: 24

約数和(自身を含む): 39722760

約数和(自身を除く): 20981300

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8597, 17194, 34388, 42985, 85970, 171940, 937073, 1874146, 3748292, 4685365, 9370730, 18741460]

約数ペア:

[(1, 18741460), (2, 9370730), (4, 4685365), (5, 3748292), (10, 1874146), (20, 937073), (109, 171940), (218, 85970), (436, 42985), (545, 34388), (1090, 17194), (2180, 8597)]