25231810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 49622400

約数和(自身を除く): 24390590

約数列:

[1, 2, 5, 10, 19, 38, 41, 79, 82, 95, 158, 190, 205, 395, 410, 779, 790, 1501, 1558, 1681, 3002, 3239, 3362, 3895, 6478, 7505, 7790, 8405, 15010, 16195, 16810, 31939, 32390, 61541, 63878, 123082, 132799, 159695, 265598, 307705, 319390, 615410, 663995, 1327990, 2523181, 5046362, 12615905, 25231810]

約数ペア:

[(1, 25231810), (2, 12615905), (5, 5046362), (10, 2523181), (19, 1327990), (38, 663995), (41, 615410), (79, 319390), (82, 307705), (95, 265598), (158, 159695), (190, 132799), (205, 123082), (395, 63878), (410, 61541), (779, 32390), (790, 31939), (1501, 16810), (1558, 16195), (1681, 15010), (3002, 8405), (3239, 7790), (3362, 7505), (3895, 6478)]