2521850905

素因数分解:

$5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 3743424000

約数和(自身を除く): 1221573095

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 193, 245, 343, 401, 665, 931, 965, 1351, 1715, 2005, 2807, 3667, 4655, 6517, 6755, 7619, 9457, 14035, 18335, 19649, 25669, 32585, 38095, 47285, 53333, 66199, 77393, 98245, 128345, 137543, 179683, 266665, 330995, 373331, 386965, 541751, 687715, 898415, 1257781, 1470467, 1866655, 2613317, 2708755, 3792257, 6288905, 7352335, 10293269, 13066585, 18961285, 26545799, 51466345, 72052883, 132728995, 360264415, 504370181, 2521850905]

約数ペア:

[(1, 2521850905), (5, 504370181), (7, 360264415), (19, 132728995), (35, 72052883), (49, 51466345), (95, 26545799), (133, 18961285), (193, 13066585), (245, 10293269), (343, 7352335), (401, 6288905), (665, 3792257), (931, 2708755), (965, 2613317), (1351, 1866655), (1715, 1470467), (2005, 1257781), (2807, 898415), (3667, 687715), (4655, 541751), (6517, 386965), (6755, 373331), (7619, 330995), (9457, 266665), (14035, 179683), (18335, 137543), (19649, 128345), (25669, 98245), (32585, 77393), (38095, 66199), (47285, 53333)]