13255040

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 32130000

約数和(自身を除く): 18874960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 149, 160, 278, 298, 320, 556, 596, 640, 695, 745, 1112, 1192, 1390, 1490, 2224, 2384, 2780, 2980, 4448, 4768, 5560, 5960, 8896, 9536, 11120, 11920, 17792, 19072, 20711, 22240, 23840, 41422, 44480, 47680, 82844, 88960, 95360, 103555, 165688, 207110, 331376, 414220, 662752, 828440, 1325504, 1656880, 2651008, 3313760, 6627520, 13255040]

約数ペア:

[(1, 13255040), (2, 6627520), (4, 3313760), (5, 2651008), (8, 1656880), (10, 1325504), (16, 828440), (20, 662752), (32, 414220), (40, 331376), (64, 207110), (80, 165688), (128, 103555), (139, 95360), (149, 88960), (160, 82844), (278, 47680), (298, 44480), (320, 41422), (556, 23840), (596, 22240), (640, 20711), (695, 19072), (745, 17792), (1112, 11920), (1192, 11120), (1390, 9536), (1490, 8896), (2224, 5960), (2384, 5560), (2780, 4768), (2980, 4448)]