12906920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24821}}^1$

素因数の和:24845

約数の個数: 32

約数和(自身を含む): 31275720

約数和(自身を除く): 18368800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 24821, 49642, 99284, 124105, 198568, 248210, 322673, 496420, 645346, 992840, 1290692, 1613365, 2581384, 3226730, 6453460, 12906920]

約数ペア:

[(1, 12906920), (2, 6453460), (4, 3226730), (5, 2581384), (8, 1613365), (10, 1290692), (13, 992840), (20, 645346), (26, 496420), (40, 322673), (52, 248210), (65, 198568), (104, 124105), (130, 99284), (260, 49642), (520, 24821)]