1381000

素因数分解:

$2^3\times 5^3\times {\mathrm{1381}}^1$

素因数の和:1402

約数の個数: 32

約数和(自身を含む): 3233880

約数和(自身を除く): 1852880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 1381, 2762, 5524, 6905, 11048, 13810, 27620, 34525, 55240, 69050, 138100, 172625, 276200, 345250, 690500, 1381000]

約数ペア:

[(1, 1381000), (2, 690500), (4, 345250), (5, 276200), (8, 172625), (10, 138100), (20, 69050), (25, 55240), (40, 34525), (50, 27620), (100, 13810), (125, 11048), (200, 6905), (250, 5524), (500, 2762), (1000, 1381)]