5161840

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{571}}^1$

素因数の和:697

約数の個数: 40

約数和(自身を含む): 12128688

約数和(自身を除く): 6966848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 571, 904, 1130, 1142, 1808, 2260, 2284, 2855, 4520, 4568, 5710, 9040, 9136, 11420, 22840, 45680, 64523, 129046, 258092, 322615, 516184, 645230, 1032368, 1290460, 2580920, 5161840]

約数ペア:

[(1, 5161840), (2, 2580920), (4, 1290460), (5, 1032368), (8, 645230), (10, 516184), (16, 322615), (20, 258092), (40, 129046), (80, 64523), (113, 45680), (226, 22840), (452, 11420), (565, 9136), (571, 9040), (904, 5710), (1130, 4568), (1142, 4520), (1808, 2855), (2260, 2284)]