248996875

素因数分解:

$5^5\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 340290720

約数和(自身を除く): 91293845

約数列:

[1, 5, 17, 25, 43, 85, 109, 125, 215, 425, 545, 625, 731, 1075, 1853, 2125, 2725, 3125, 3655, 4687, 5375, 9265, 10625, 13625, 18275, 23435, 26875, 46325, 53125, 68125, 79679, 91375, 117175, 134375, 231625, 340625, 398395, 456875, 585875, 1158125, 1991975, 2284375, 2929375, 5790625, 9959875, 14646875, 49799375, 248996875]

約数ペア:

[(1, 248996875), (5, 49799375), (17, 14646875), (25, 9959875), (43, 5790625), (85, 2929375), (109, 2284375), (125, 1991975), (215, 1158125), (425, 585875), (545, 456875), (625, 398395), (731, 340625), (1075, 231625), (1853, 134375), (2125, 117175), (2725, 91375), (3125, 79679), (3655, 68125), (4687, 53125), (5375, 46325), (9265, 26875), (10625, 23435), (13625, 18275)]