18397340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5443}}^1$

素因数の和:5478

約数の個数: 36

約数和(自身を含む): 41842584

約数和(自身を除く): 23445244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 5443, 10886, 21772, 27215, 54430, 70759, 108860, 141518, 283036, 353795, 707590, 919867, 1415180, 1839734, 3679468, 4599335, 9198670, 18397340]

約数ペア:

[(1, 18397340), (2, 9198670), (4, 4599335), (5, 3679468), (10, 1839734), (13, 1415180), (20, 919867), (26, 707590), (52, 353795), (65, 283036), (130, 141518), (169, 108860), (260, 70759), (338, 54430), (676, 27215), (845, 21772), (1690, 10886), (3380, 5443)]