64012100

素因数分解:

$2^2\times 5^2\times {\mathrm{640121}}^1$

素因数の和:640135

約数の個数: 18

約数和(自身を含む): 138906474

約数和(自身を除く): 74894374

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 640121, 1280242, 2560484, 3200605, 6401210, 12802420, 16003025, 32006050, 64012100]

約数ペア:

[(1, 64012100), (2, 32006050), (4, 16003025), (5, 12802420), (10, 6401210), (20, 3200605), (25, 2560484), (50, 1280242), (100, 640121)]