81759780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{16823}}^1$

素因数の和:16847

約数の個数: 72

約数和(自身を含む): 257205312

約数和(自身を除く): 175445532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 16823, 33646, 50469, 67292, 84115, 100938, 151407, 168230, 201876, 252345, 302814, 336460, 454221, 504690, 605628, 757035, 908442, 1009380, 1362663, 1514070, 1816884, 2271105, 2725326, 3028140, 4087989, 4542210, 5450652, 6813315, 8175978, 9084420, 13626630, 16351956, 20439945, 27253260, 40879890, 81759780]

約数ペア:

[(1, 81759780), (2, 40879890), (3, 27253260), (4, 20439945), (5, 16351956), (6, 13626630), (9, 9084420), (10, 8175978), (12, 6813315), (15, 5450652), (18, 4542210), (20, 4087989), (27, 3028140), (30, 2725326), (36, 2271105), (45, 1816884), (54, 1514070), (60, 1362663), (81, 1009380), (90, 908442), (108, 757035), (135, 605628), (162, 504690), (180, 454221), (243, 336460), (270, 302814), (324, 252345), (405, 201876), (486, 168230), (540, 151407), (810, 100938), (972, 84115), (1215, 67292), (1620, 50469), (2430, 33646), (4860, 16823)]