217081725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{379}}^1\times {\mathrm{1091}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 411640320

約数和(自身を除く): 194558595

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 379, 525, 1091, 1137, 1895, 2653, 3273, 5455, 5685, 7637, 7959, 9475, 13265, 16365, 22911, 27275, 28425, 38185, 39795, 66325, 81825, 114555, 190925, 198975, 413489, 572775, 1240467, 2067445, 2894423, 6202335, 8683269, 10337225, 14472115, 31011675, 43416345, 72360575, 217081725]

約数ペア:

[(1, 217081725), (3, 72360575), (5, 43416345), (7, 31011675), (15, 14472115), (21, 10337225), (25, 8683269), (35, 6202335), (75, 2894423), (105, 2067445), (175, 1240467), (379, 572775), (525, 413489), (1091, 198975), (1137, 190925), (1895, 114555), (2653, 81825), (3273, 66325), (5455, 39795), (5685, 38185), (7637, 28425), (7959, 27275), (9475, 22911), (13265, 16365)]