20585075

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 31664640

約数和(自身を除く): 11079565

約数列:

[1, 5, 7, 19, 25, 35, 41, 95, 133, 151, 175, 205, 287, 475, 665, 755, 779, 1025, 1057, 1435, 2869, 3325, 3775, 3895, 5285, 5453, 6191, 7175, 14345, 19475, 20083, 26425, 27265, 30955, 43337, 71725, 100415, 117629, 136325, 154775, 216685, 502075, 588145, 823403, 1083425, 2940725, 4117015, 20585075]

約数ペア:

[(1, 20585075), (5, 4117015), (7, 2940725), (19, 1083425), (25, 823403), (35, 588145), (41, 502075), (95, 216685), (133, 154775), (151, 136325), (175, 117629), (205, 100415), (287, 71725), (475, 43337), (665, 30955), (755, 27265), (779, 26425), (1025, 20083), (1057, 19475), (1435, 14345), (2869, 7175), (3325, 6191), (3775, 5453), (3895, 5285)]