881758480

素因数分解:

$2^4\times 5^1\times {\mathrm{11021981}}^1$

素因数の和:11021994

約数の個数: 20

約数和(自身を含む): 2050088652

約数和(自身を除く): 1168330172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11021981, 22043962, 44087924, 55109905, 88175848, 110219810, 176351696, 220439620, 440879240, 881758480]

約数ペア:

[(1, 881758480), (2, 440879240), (4, 220439620), (5, 176351696), (8, 110219810), (10, 88175848), (16, 55109905), (20, 44087924), (40, 22043962), (80, 11021981)]