2542840

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 5772960

約数和(自身を除く): 3230120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 421, 604, 755, 842, 1208, 1510, 1684, 2105, 3020, 3368, 4210, 6040, 8420, 16840, 63571, 127142, 254284, 317855, 508568, 635710, 1271420, 2542840]

約数ペア:

[(1, 2542840), (2, 1271420), (4, 635710), (5, 508568), (8, 317855), (10, 254284), (20, 127142), (40, 63571), (151, 16840), (302, 8420), (421, 6040), (604, 4210), (755, 3368), (842, 3020), (1208, 2105), (1510, 1684)]