15490415

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 20262480

約数和(自身を除く): 4772065

約数列:

[1, 5, 19, 41, 95, 97, 205, 485, 779, 1681, 1843, 3895, 3977, 8405, 9215, 19885, 31939, 75563, 159695, 163057, 377815, 815285, 3098083, 15490415]

約数ペア:

[(1, 15490415), (5, 3098083), (19, 815285), (41, 377815), (95, 163057), (97, 159695), (205, 75563), (485, 31939), (779, 19885), (1681, 9215), (1843, 8405), (3895, 3977)]