2019778540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7768379}}^1$

素因数の和:7768401

約数の個数: 24

約数和(自身を含む): 4567807440

約数和(自身を除く): 2548028900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 7768379, 15536758, 31073516, 38841895, 77683790, 100988927, 155367580, 201977854, 403955708, 504944635, 1009889270, 2019778540]

約数ペア:

[(1, 2019778540), (2, 1009889270), (4, 504944635), (5, 403955708), (10, 201977854), (13, 155367580), (20, 100988927), (26, 77683790), (52, 38841895), (65, 31073516), (130, 15536758), (260, 7768379)]