1261840

素因数分解:

$2^4\times 5^1\times {\mathrm{15773}}^1$

素因数の和:15786

約数の個数: 20

約数和(自身を含む): 2933964

約数和(自身を除く): 1672124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15773, 31546, 63092, 78865, 126184, 157730, 252368, 315460, 630920, 1261840]

約数ペア:

[(1, 1261840), (2, 630920), (4, 315460), (5, 252368), (8, 157730), (10, 126184), (16, 78865), (20, 63092), (40, 31546), (80, 15773)]