28574980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204107}}^1$

素因数の和:204123

約数の個数: 24

約数和(自身を含む): 68580288

約数和(自身を除く): 40005308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204107, 408214, 816428, 1020535, 1428749, 2041070, 2857498, 4082140, 5714996, 7143745, 14287490, 28574980]

約数ペア:

[(1, 28574980), (2, 14287490), (4, 7143745), (5, 5714996), (7, 4082140), (10, 2857498), (14, 2041070), (20, 1428749), (28, 1020535), (35, 816428), (70, 408214), (140, 204107)]