20408510305

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{991}}^1\times {\mathrm{1367}}^1$

素因数の和:2517

約数の個数: 32

約数和(自身を含む): 25794920448

約数和(自身を除く): 5386410143

約数列:

[1, 5, 23, 115, 131, 655, 991, 1367, 3013, 4955, 6835, 15065, 22793, 31441, 113965, 129821, 157205, 179077, 649105, 895385, 1354697, 2985883, 4118771, 6773485, 14929415, 20593855, 31158031, 155790155, 177465307, 887326535, 4081702061, 20408510305]

約数ペア:

[(1, 20408510305), (5, 4081702061), (23, 887326535), (115, 177465307), (131, 155790155), (655, 31158031), (991, 20593855), (1367, 14929415), (3013, 6773485), (4955, 4118771), (6835, 2985883), (15065, 1354697), (22793, 895385), (31441, 649105), (113965, 179077), (129821, 157205)]