1330400420

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{158759}}^1$

素因数の和:159187

約数の個数: 24

約数和(自身を含む): 2800526400

約数和(自身を除く): 1470125980

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 4190, 8380, 158759, 317518, 635036, 793795, 1587590, 3175180, 66520021, 133040042, 266080084, 332600105, 665200210, 1330400420]

約数ペア:

[(1, 1330400420), (2, 665200210), (4, 332600105), (5, 266080084), (10, 133040042), (20, 66520021), (419, 3175180), (838, 1587590), (1676, 793795), (2095, 635036), (4190, 317518), (8380, 158759)]