203907145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{4027}}^1$

素因数の和:4105

約数の個数: 32

約数和(自身を含む): 284215680

約数和(自身を除く): 80308535

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 533, 779, 1235, 2665, 3895, 4027, 10127, 20135, 50635, 52351, 76513, 165107, 261755, 382565, 825535, 994669, 2146391, 3137033, 4973345, 10731955, 15685165, 40781429, 203907145]

約数ペア:

[(1, 203907145), (5, 40781429), (13, 15685165), (19, 10731955), (41, 4973345), (65, 3137033), (95, 2146391), (205, 994669), (247, 825535), (533, 382565), (779, 261755), (1235, 165107), (2665, 76513), (3895, 52351), (4027, 50635), (10127, 20135)]