872149535

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 1109572992

約数和(自身を除く): 237423457

約数列:

[1, 5, 23, 115, 137, 197, 281, 685, 985, 1405, 3151, 4531, 6463, 15755, 22655, 26989, 32315, 38497, 55357, 134945, 192485, 276785, 620747, 885431, 1273211, 3103735, 4427155, 6366055, 7583909, 37919545, 174429907, 872149535]

約数ペア:

[(1, 872149535), (5, 174429907), (23, 37919545), (115, 7583909), (137, 6366055), (197, 4427155), (281, 3103735), (685, 1273211), (985, 885431), (1405, 620747), (3151, 276785), (4531, 192485), (6463, 134945), (15755, 55357), (22655, 38497), (26989, 32315)]