25632080

素因数分解:

$2^4\times 5^1\times {\mathrm{320401}}^1$

素因数の和:320414

約数の個数: 20

約数和(自身を含む): 59594772

約数和(自身を除く): 33962692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 320401, 640802, 1281604, 1602005, 2563208, 3204010, 5126416, 6408020, 12816040, 25632080]

約数ペア:

[(1, 25632080), (2, 12816040), (4, 6408020), (5, 5126416), (8, 3204010), (10, 2563208), (16, 1602005), (20, 1281604), (40, 640802), (80, 320401)]