81127020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104009}}^1$

素因数の和:104034

約数の個数: 48

約数和(自身を含む): 244631520

約数和(自身を除く): 163504500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 104009, 208018, 312027, 416036, 520045, 624054, 1040090, 1248108, 1352117, 1560135, 2080180, 2704234, 3120270, 4056351, 5408468, 6240540, 6760585, 8112702, 13521170, 16225404, 20281755, 27042340, 40563510, 81127020]

約数ペア:

[(1, 81127020), (2, 40563510), (3, 27042340), (4, 20281755), (5, 16225404), (6, 13521170), (10, 8112702), (12, 6760585), (13, 6240540), (15, 5408468), (20, 4056351), (26, 3120270), (30, 2704234), (39, 2080180), (52, 1560135), (60, 1352117), (65, 1248108), (78, 1040090), (130, 624054), (156, 520045), (195, 416036), (260, 312027), (390, 208018), (780, 104009)]