25981840

素因数分解:

$2^4\times 5^1\times {\mathrm{324773}}^1$

素因数の和:324786

約数の個数: 20

約数和(自身を含む): 60407964

約数和(自身を除く): 34426124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 324773, 649546, 1299092, 1623865, 2598184, 3247730, 5196368, 6495460, 12990920, 25981840]

約数ペア:

[(1, 25981840), (2, 12990920), (4, 6495460), (5, 5196368), (8, 3247730), (10, 2598184), (16, 1623865), (20, 1299092), (40, 649546), (80, 324773)]