138888968

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{1571}}^1$

素因数の和:1877

約数の個数: 32

約数和(自身を含む): 267680160

約数和(自身を除く): 128791192

約数列:

[1, 2, 4, 8, 43, 86, 172, 257, 344, 514, 1028, 1571, 2056, 3142, 6284, 11051, 12568, 22102, 44204, 67553, 88408, 135106, 270212, 403747, 540424, 807494, 1614988, 3229976, 17361121, 34722242, 69444484, 138888968]

約数ペア:

[(1, 138888968), (2, 69444484), (4, 34722242), (8, 17361121), (43, 3229976), (86, 1614988), (172, 807494), (257, 540424), (344, 403747), (514, 270212), (1028, 135106), (1571, 88408), (2056, 67553), (3142, 44204), (6284, 22102), (11051, 12568)]