26688520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21523}}^1$

素因数の和:21565

約数の個数: 32

約数和(自身を含む): 61989120

約数和(自身を除く): 35300600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 21523, 43046, 86092, 107615, 172184, 215230, 430460, 667213, 860920, 1334426, 2668852, 3336065, 5337704, 6672130, 13344260, 26688520]

約数ペア:

[(1, 26688520), (2, 13344260), (4, 6672130), (5, 5337704), (8, 3336065), (10, 2668852), (20, 1334426), (31, 860920), (40, 667213), (62, 430460), (124, 215230), (155, 172184), (248, 107615), (310, 86092), (620, 43046), (1240, 21523)]