257947875

素因数分解:

$3^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{3323}}^1$

素因数の和:3370

約数の個数: 64

約数和(自身を含む): 497802240

約数和(自身を除く): 239854365

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 115, 125, 135, 207, 225, 345, 375, 575, 621, 675, 1035, 1125, 1725, 2875, 3105, 3323, 3375, 5175, 8625, 9969, 15525, 16615, 25875, 29907, 49845, 76429, 77625, 83075, 89721, 149535, 229287, 249225, 382145, 415375, 448605, 687861, 747675, 1146435, 1246125, 1910725, 2063583, 2243025, 3439305, 3738375, 5732175, 9553625, 10317915, 11215125, 17196525, 28660875, 51589575, 85982625, 257947875]

約数ペア:

[(1, 257947875), (3, 85982625), (5, 51589575), (9, 28660875), (15, 17196525), (23, 11215125), (25, 10317915), (27, 9553625), (45, 5732175), (69, 3738375), (75, 3439305), (115, 2243025), (125, 2063583), (135, 1910725), (207, 1246125), (225, 1146435), (345, 747675), (375, 687861), (575, 448605), (621, 415375), (675, 382145), (1035, 249225), (1125, 229287), (1725, 149535), (2875, 89721), (3105, 83075), (3323, 77625), (3375, 76429), (5175, 49845), (8625, 29907), (9969, 25875), (15525, 16615)]