18402925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 26516160

約数和(自身を除く): 8113235

約数列:

[1, 5, 17, 19, 25, 43, 53, 85, 95, 215, 265, 323, 425, 475, 731, 817, 901, 1007, 1075, 1325, 1615, 2279, 3655, 4085, 4505, 5035, 8075, 11395, 13889, 17119, 18275, 20425, 22525, 25175, 38743, 43301, 56975, 69445, 85595, 193715, 216505, 347225, 427975, 736117, 968575, 1082525, 3680585, 18402925]

約数ペア:

[(1, 18402925), (5, 3680585), (17, 1082525), (19, 968575), (25, 736117), (43, 427975), (53, 347225), (85, 216505), (95, 193715), (215, 85595), (265, 69445), (323, 56975), (425, 43301), (475, 38743), (731, 25175), (817, 22525), (901, 20425), (1007, 18275), (1075, 17119), (1325, 13889), (1615, 11395), (2279, 8075), (3655, 5035), (4085, 4505)]