138723040

素因数分解:

$2^5\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1931}}^1$

素因数の和:2395

約数の個数: 48

約数和(自身を含む): 328633200

約数和(自身を除く): 189910160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 449, 898, 1796, 1931, 2245, 3592, 3862, 4490, 7184, 7724, 8980, 9655, 14368, 15448, 17960, 19310, 30896, 35920, 38620, 61792, 71840, 77240, 154480, 308960, 867019, 1734038, 3468076, 4335095, 6936152, 8670190, 13872304, 17340380, 27744608, 34680760, 69361520, 138723040]

約数ペア:

[(1, 138723040), (2, 69361520), (4, 34680760), (5, 27744608), (8, 17340380), (10, 13872304), (16, 8670190), (20, 6936152), (32, 4335095), (40, 3468076), (80, 1734038), (160, 867019), (449, 308960), (898, 154480), (1796, 77240), (1931, 71840), (2245, 61792), (3592, 38620), (3862, 35920), (4490, 30896), (7184, 19310), (7724, 17960), (8980, 15448), (9655, 14368)]