20528300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15791}}^1$

素因数の和:15818

約数の個数: 36

約数和(自身を含む): 47976096

約数和(自身を除く): 27447796

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15791, 31582, 63164, 78955, 157910, 205283, 315820, 394775, 410566, 789550, 821132, 1026415, 1579100, 2052830, 4105660, 5132075, 10264150, 20528300]

約数ペア:

[(1, 20528300), (2, 10264150), (4, 5132075), (5, 4105660), (10, 2052830), (13, 1579100), (20, 1026415), (25, 821132), (26, 789550), (50, 410566), (52, 394775), (65, 315820), (100, 205283), (130, 157910), (260, 78955), (325, 63164), (650, 31582), (1300, 15791)]