8009180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 17592960

約数和(自身を除く): 9583780

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 139, 172, 215, 268, 278, 335, 430, 556, 670, 695, 860, 1340, 1390, 2780, 2881, 5762, 5977, 9313, 11524, 11954, 14405, 18626, 23908, 28810, 29885, 37252, 46565, 57620, 59770, 93130, 119540, 186260, 400459, 800918, 1601836, 2002295, 4004590, 8009180]

約数ペア:

[(1, 8009180), (2, 4004590), (4, 2002295), (5, 1601836), (10, 800918), (20, 400459), (43, 186260), (67, 119540), (86, 93130), (134, 59770), (139, 57620), (172, 46565), (215, 37252), (268, 29885), (278, 28810), (335, 23908), (430, 18626), (556, 14405), (670, 11954), (695, 11524), (860, 9313), (1340, 5977), (1390, 5762), (2780, 2881)]