28217875

素因数分解:

$5^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 43535232

約数和(自身を除く): 15317357

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 125, 175, 245, 271, 425, 595, 833, 875, 1225, 1355, 1897, 2125, 2975, 4165, 4607, 6125, 6775, 9485, 13279, 14875, 20825, 23035, 32249, 33875, 47425, 66395, 104125, 115175, 161245, 225743, 237125, 331975, 575875, 806225, 1128715, 1659875, 4031125, 5643575, 28217875]

約数ペア:

[(1, 28217875), (5, 5643575), (7, 4031125), (17, 1659875), (25, 1128715), (35, 806225), (49, 575875), (85, 331975), (119, 237125), (125, 225743), (175, 161245), (245, 115175), (271, 104125), (425, 66395), (595, 47425), (833, 33875), (875, 32249), (1225, 23035), (1355, 20825), (1897, 14875), (2125, 13279), (2975, 9485), (4165, 6775), (4607, 6125)]