17645420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67867}}^1$

素因数の和:67889

約数の個数: 24

約数和(自身を含む): 39906384

約数和(自身を除く): 22260964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 67867, 135734, 271468, 339335, 678670, 882271, 1357340, 1764542, 3529084, 4411355, 8822710, 17645420]

約数ペア:

[(1, 17645420), (2, 8822710), (4, 4411355), (5, 3529084), (10, 1764542), (13, 1357340), (20, 882271), (26, 678670), (52, 339335), (65, 271468), (130, 135734), (260, 67867)]