25719160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:860

約数の個数: 64

約数和(自身を含む): 62409600

約数和(自身を除く): 36690440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 787, 817, 860, 1574, 1634, 1720, 3148, 3268, 3935, 4085, 6296, 6536, 7870, 8170, 14953, 15740, 16340, 29906, 31480, 32680, 33841, 59812, 67682, 74765, 119624, 135364, 149530, 169205, 270728, 299060, 338410, 598120, 642979, 676820, 1285958, 1353640, 2571916, 3214895, 5143832, 6429790, 12859580, 25719160]

約数ペア:

[(1, 25719160), (2, 12859580), (4, 6429790), (5, 5143832), (8, 3214895), (10, 2571916), (19, 1353640), (20, 1285958), (38, 676820), (40, 642979), (43, 598120), (76, 338410), (86, 299060), (95, 270728), (152, 169205), (172, 149530), (190, 135364), (215, 119624), (344, 74765), (380, 67682), (430, 59812), (760, 33841), (787, 32680), (817, 31480), (860, 29906), (1574, 16340), (1634, 15740), (1720, 14953), (3148, 8170), (3268, 7870), (3935, 6536), (4085, 6296)]