12905380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37957}}^1$

素因数の和:37983

約数の個数: 24

約数和(自身を含む): 28696248

約数和(自身を除く): 15790868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 37957, 75914, 151828, 189785, 379570, 645269, 759140, 1290538, 2581076, 3226345, 6452690, 12905380]

約数ペア:

[(1, 12905380), (2, 6452690), (4, 3226345), (5, 2581076), (10, 1290538), (17, 759140), (20, 645269), (34, 379570), (68, 189785), (85, 151828), (170, 75914), (340, 37957)]