25604840

素因数分解:

$2^3\times 5^1\times {\mathrm{640121}}^1$

素因数の和:640132

約数の個数: 16

約数和(自身を含む): 57610980

約数和(自身を除く): 32006140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 640121, 1280242, 2560484, 3200605, 5120968, 6401210, 12802420, 25604840]

約数ペア:

[(1, 25604840), (2, 12802420), (4, 6401210), (5, 5120968), (8, 3200605), (10, 2560484), (20, 1280242), (40, 640121)]