256504325

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{587}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 398974464

約数和(自身を除く): 142470139

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 227, 275, 385, 587, 1135, 1589, 1925, 2497, 2935, 4109, 5675, 6457, 7945, 12485, 14675, 17479, 20545, 32285, 39725, 45199, 62425, 87395, 102725, 133249, 161425, 225995, 436975, 666245, 932743, 1129975, 1465739, 3331225, 4663715, 7328695, 10260173, 23318575, 36643475, 51300865, 256504325]

約数ペア:

[(1, 256504325), (5, 51300865), (7, 36643475), (11, 23318575), (25, 10260173), (35, 7328695), (55, 4663715), (77, 3331225), (175, 1465739), (227, 1129975), (275, 932743), (385, 666245), (587, 436975), (1135, 225995), (1589, 161425), (1925, 133249), (2497, 102725), (2935, 87395), (4109, 62425), (5675, 45199), (6457, 39725), (7945, 32285), (12485, 20545), (14675, 17479)]