27889640

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2713}}^1$

素因数の和:2981

約数の個数: 32

約数和(自身を含む): 63019080

約数和(自身を除く): 35129440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 2713, 5140, 5426, 10280, 10852, 13565, 21704, 27130, 54260, 108520, 697241, 1394482, 2788964, 3486205, 5577928, 6972410, 13944820, 27889640]

約数ペア:

[(1, 27889640), (2, 13944820), (4, 6972410), (5, 5577928), (8, 3486205), (10, 2788964), (20, 1394482), (40, 697241), (257, 108520), (514, 54260), (1028, 27130), (1285, 21704), (2056, 13565), (2570, 10852), (2713, 10280), (5140, 5426)]