12730640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12241}}^1$

素因数の和:12267

約数の個数: 40

約数和(自身を含む): 31878168

約数和(自身を除く): 19147528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12241, 24482, 48964, 61205, 97928, 122410, 159133, 195856, 244820, 318266, 489640, 636532, 795665, 979280, 1273064, 1591330, 2546128, 3182660, 6365320, 12730640]

約数ペア:

[(1, 12730640), (2, 6365320), (4, 3182660), (5, 2546128), (8, 1591330), (10, 1273064), (13, 979280), (16, 795665), (20, 636532), (26, 489640), (40, 318266), (52, 244820), (65, 195856), (80, 159133), (104, 122410), (130, 97928), (208, 61205), (260, 48964), (520, 24482), (1040, 12241)]