1780451590

素因数分解:

$2^1\times 5^1\times {\mathrm{829}}^1\times {\mathrm{214771}}^1$

素因数の和:215607

約数の個数: 16

約数和(自身を含む): 3208693680

約数和(自身を除く): 1428242090

約数列:

[1, 2, 5, 10, 829, 1658, 4145, 8290, 214771, 429542, 1073855, 2147710, 178045159, 356090318, 890225795, 1780451590]

約数ペア:

[(1, 1780451590), (2, 890225795), (5, 356090318), (10, 178045159), (829, 2147710), (1658, 1073855), (4145, 429542), (8290, 214771)]