20969680

素因数分解:

$2^4\times 5^1\times {\mathrm{262121}}^1$

素因数の和:262134

約数の個数: 20

約数和(自身を含む): 48754692

約数和(自身を除く): 27785012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262121, 524242, 1048484, 1310605, 2096968, 2621210, 4193936, 5242420, 10484840, 20969680]

約数ペア:

[(1, 20969680), (2, 10484840), (4, 5242420), (5, 4193936), (8, 2621210), (10, 2096968), (16, 1310605), (20, 1048484), (40, 524242), (80, 262121)]