419202020

素因数分解:

$2^2\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{13043}}^1$

素因数の和:14659

約数の個数: 24

約数和(自身を含む): 880939584

約数和(自身を除く): 461737564

約数列:

[1, 2, 4, 5, 10, 20, 1607, 3214, 6428, 8035, 13043, 16070, 26086, 32140, 52172, 65215, 130430, 260860, 20960101, 41920202, 83840404, 104800505, 209601010, 419202020]

約数ペア:

[(1, 419202020), (2, 209601010), (4, 104800505), (5, 83840404), (10, 41920202), (20, 20960101), (1607, 260860), (3214, 130430), (6428, 65215), (8035, 52172), (13043, 32140), (16070, 26086)]