18404720

素因数分解:

$2^4\times 5^1\times {\mathrm{230059}}^1$

素因数の和:230072

約数の個数: 20

約数和(自身を含む): 42791160

約数和(自身を除く): 24386440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230059, 460118, 920236, 1150295, 1840472, 2300590, 3680944, 4601180, 9202360, 18404720]

約数ペア:

[(1, 18404720), (2, 9202360), (4, 4601180), (5, 3680944), (8, 2300590), (10, 1840472), (16, 1150295), (20, 920236), (40, 460118), (80, 230059)]