20157264

素因数分解:

$2^4\times 3^2\times {\mathrm{139981}}^1$

素因数の和:139995

約数の個数: 30

約数和(自身を含む): 56412746

約数和(自身を除く): 36255482

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 139981, 279962, 419943, 559924, 839886, 1119848, 1259829, 1679772, 2239696, 2519658, 3359544, 5039316, 6719088, 10078632, 20157264]

約数ペア:

[(1, 20157264), (2, 10078632), (3, 6719088), (4, 5039316), (6, 3359544), (8, 2519658), (9, 2239696), (12, 1679772), (16, 1259829), (18, 1119848), (24, 839886), (36, 559924), (48, 419943), (72, 279962), (144, 139981)]