7898220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3989}}^1$

素因数の和:4015

約数の個数: 72

約数和(自身を含む): 26142480

約数和(自身を除く): 18244260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 3989, 7978, 11967, 15956, 19945, 23934, 35901, 39890, 43879, 47868, 59835, 71802, 79780, 87758, 119670, 131637, 143604, 175516, 179505, 219395, 239340, 263274, 359010, 394911, 438790, 526548, 658185, 718020, 789822, 877580, 1316370, 1579644, 1974555, 2632740, 3949110, 7898220]

約数ペア:

[(1, 7898220), (2, 3949110), (3, 2632740), (4, 1974555), (5, 1579644), (6, 1316370), (9, 877580), (10, 789822), (11, 718020), (12, 658185), (15, 526548), (18, 438790), (20, 394911), (22, 359010), (30, 263274), (33, 239340), (36, 219395), (44, 179505), (45, 175516), (55, 143604), (60, 131637), (66, 119670), (90, 87758), (99, 79780), (110, 71802), (132, 59835), (165, 47868), (180, 43879), (198, 39890), (220, 35901), (330, 23934), (396, 19945), (495, 15956), (660, 11967), (990, 7978), (1980, 3989)]