65724760

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11821}}^1$

素因数の和:11971

約数の個数: 32

約数和(自身を含む): 148957200

約数和(自身を除く): 83232440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 11821, 23642, 47284, 59105, 94568, 118210, 236420, 472840, 1643119, 3286238, 6572476, 8215595, 13144952, 16431190, 32862380, 65724760]

約数ペア:

[(1, 65724760), (2, 32862380), (4, 16431190), (5, 13144952), (8, 8215595), (10, 6572476), (20, 3286238), (40, 1643119), (139, 472840), (278, 236420), (556, 118210), (695, 94568), (1112, 59105), (1390, 47284), (2780, 23642), (5560, 11821)]