12913240

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{719}}^1$

素因数の和:1179

約数の個数: 32

約数和(自身を含む): 29160000

約数和(自身を除く): 16246760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 719, 898, 1438, 1796, 2245, 2876, 3592, 3595, 4490, 5752, 7190, 8980, 14380, 17960, 28760, 322831, 645662, 1291324, 1614155, 2582648, 3228310, 6456620, 12913240]

約数ペア:

[(1, 12913240), (2, 6456620), (4, 3228310), (5, 2582648), (8, 1614155), (10, 1291324), (20, 645662), (40, 322831), (449, 28760), (719, 17960), (898, 14380), (1438, 8980), (1796, 7190), (2245, 5752), (2876, 4490), (3592, 3595)]