25648240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18859}}^1$

素因数の和:18889

約数の個数: 40

約数和(自身を含む): 63143280

約数和(自身を除く): 37495040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 18859, 37718, 75436, 94295, 150872, 188590, 301744, 320603, 377180, 641206, 754360, 1282412, 1508720, 1603015, 2564824, 3206030, 5129648, 6412060, 12824120, 25648240]

約数ペア:

[(1, 25648240), (2, 12824120), (4, 6412060), (5, 5129648), (8, 3206030), (10, 2564824), (16, 1603015), (17, 1508720), (20, 1282412), (34, 754360), (40, 641206), (68, 377180), (80, 320603), (85, 301744), (136, 188590), (170, 150872), (272, 94295), (340, 75436), (680, 37718), (1360, 18859)]