20497670

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{653}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 38329632

約数和(自身を除く): 17831962

約数列:

[1, 2, 5, 10, 43, 73, 86, 146, 215, 365, 430, 653, 730, 1306, 3139, 3265, 6278, 6530, 15695, 28079, 31390, 47669, 56158, 95338, 140395, 238345, 280790, 476690, 2049767, 4099534, 10248835, 20497670]

約数ペア:

[(1, 20497670), (2, 10248835), (5, 4099534), (10, 2049767), (43, 476690), (73, 280790), (86, 238345), (146, 140395), (215, 95338), (365, 56158), (430, 47669), (653, 31390), (730, 28079), (1306, 15695), (3139, 6530), (3265, 6278)]