28043795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{619}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 11328685

約数列:

[1, 5, 13, 17, 41, 65, 85, 205, 221, 533, 619, 697, 1105, 2665, 3095, 3485, 8047, 9061, 10523, 25379, 40235, 45305, 52615, 126895, 136799, 329927, 431443, 683995, 1649635, 2157215, 5608759, 28043795]

約数ペア:

[(1, 28043795), (5, 5608759), (13, 2157215), (17, 1649635), (41, 683995), (65, 431443), (85, 329927), (205, 136799), (221, 126895), (533, 52615), (619, 45305), (697, 40235), (1105, 25379), (2665, 10523), (3095, 9061), (3485, 8047)]