87978020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{26029}}^1$

素因数の和:26064

約数の個数: 36

約数和(自身を含む): 200066580

約数和(自身を除く): 112088560

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 26029, 52058, 104116, 130145, 260290, 338377, 520580, 676754, 1353508, 1691885, 3383770, 4398901, 6767540, 8797802, 17595604, 21994505, 43989010, 87978020]

約数ペア:

[(1, 87978020), (2, 43989010), (4, 21994505), (5, 17595604), (10, 8797802), (13, 6767540), (20, 4398901), (26, 3383770), (52, 1691885), (65, 1353508), (130, 676754), (169, 520580), (260, 338377), (338, 260290), (676, 130145), (845, 104116), (1690, 52058), (3380, 26029)]