129664760

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{23321}}^1$

素因数の和:23471

約数の個数: 32

約数和(自身を含む): 293857200

約数和(自身を除く): 164192440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 23321, 46642, 93284, 116605, 186568, 233210, 466420, 932840, 3241619, 6483238, 12966476, 16208095, 25932952, 32416190, 64832380, 129664760]

約数ペア:

[(1, 129664760), (2, 64832380), (4, 32416190), (5, 25932952), (8, 16208095), (10, 12966476), (20, 6483238), (40, 3241619), (139, 932840), (278, 466420), (556, 233210), (695, 186568), (1112, 116605), (1390, 93284), (2780, 46642), (5560, 23321)]