20702950

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{10099}}^1$

素因数の和:10152

約数の個数: 24

約数和(自身を含む): 39450600

約数和(自身を除く): 18747650

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 10099, 20198, 50495, 100990, 252475, 414059, 504950, 828118, 2070295, 4140590, 10351475, 20702950]

約数ペア:

[(1, 20702950), (2, 10351475), (5, 4140590), (10, 2070295), (25, 828118), (41, 504950), (50, 414059), (82, 252475), (205, 100990), (410, 50495), (1025, 20198), (2050, 10099)]