257149725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{3739}}^1$

素因数の和:3890

約数の個数: 48

約数和(自身を含む): 489730560

約数和(自身を除く): 232580835

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 131, 175, 393, 525, 655, 917, 1965, 2751, 3275, 3739, 4585, 9825, 11217, 13755, 18695, 22925, 26173, 56085, 68775, 78519, 93475, 130865, 280425, 392595, 489809, 654325, 1469427, 1962975, 2449045, 3428663, 7347135, 10285989, 12245225, 17143315, 36735675, 51429945, 85716575, 257149725]

約数ペア:

[(1, 257149725), (3, 85716575), (5, 51429945), (7, 36735675), (15, 17143315), (21, 12245225), (25, 10285989), (35, 7347135), (75, 3428663), (105, 2449045), (131, 1962975), (175, 1469427), (393, 654325), (525, 489809), (655, 392595), (917, 280425), (1965, 130865), (2751, 93475), (3275, 78519), (3739, 68775), (4585, 56085), (9825, 26173), (11217, 22925), (13755, 18695)]