1645291255

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{1993}}^1\times {\mathrm{4027}}^1$

素因数の和:6066

約数の個数: 16

約数和(自身を含む): 2024021664

約数和(自身を除く): 378730409

約数列:

[1, 5, 41, 205, 1993, 4027, 9965, 20135, 81713, 165107, 408565, 825535, 8025811, 40129055, 329058251, 1645291255]

約数ペア:

[(1, 1645291255), (5, 329058251), (41, 40129055), (205, 8025811), (1993, 825535), (4027, 408565), (9965, 165107), (20135, 81713)]