355242520

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{16981}}^1$

素因数の和:17515

約数の個数: 32

約数和(自身を含む): 800871120

約数和(自身を除く): 445628600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 4184, 5230, 10460, 16981, 20920, 33962, 67924, 84905, 135848, 169810, 339620, 679240, 8881063, 17762126, 35524252, 44405315, 71048504, 88810630, 177621260, 355242520]

約数ペア:

[(1, 355242520), (2, 177621260), (4, 88810630), (5, 71048504), (8, 44405315), (10, 35524252), (20, 17762126), (40, 8881063), (523, 679240), (1046, 339620), (2092, 169810), (2615, 135848), (4184, 84905), (5230, 67924), (10460, 33962), (16981, 20920)]