18219020

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4013}}^1$

素因数の和:4249

約数の個数: 24

約数和(自身を含む): 38438064

約数和(自身を除く): 20219044

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4013, 4540, 8026, 16052, 20065, 40130, 80260, 910951, 1821902, 3643804, 4554755, 9109510, 18219020]

約数ペア:

[(1, 18219020), (2, 9109510), (4, 4554755), (5, 3643804), (10, 1821902), (20, 910951), (227, 80260), (454, 40130), (908, 20065), (1135, 16052), (2270, 8026), (4013, 4540)]