402100100

素因数分解:

$2^2\times 5^2\times {\mathrm{4021001}}^1$

素因数の和:4021015

約数の個数: 18

約数和(自身を含む): 872557434

約数和(自身を除く): 470457334

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 4021001, 8042002, 16084004, 20105005, 40210010, 80420020, 100525025, 201050050, 402100100]

約数ペア:

[(1, 402100100), (2, 201050050), (4, 100525025), (5, 80420020), (10, 40210010), (20, 20105005), (25, 16084004), (50, 8042002), (100, 4021001)]