78807790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1\times {\mathrm{821}}^1$

素因数の和:1188

約数の個数: 32

約数和(自身を含む): 147368160

約数和(自身を除く): 68560370

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 331, 662, 821, 1642, 1655, 3310, 4105, 8210, 9599, 19198, 23809, 47618, 47995, 95990, 119045, 238090, 271751, 543502, 1358755, 2717510, 7880779, 15761558, 39403895, 78807790]

約数ペア:

[(1, 78807790), (2, 39403895), (5, 15761558), (10, 7880779), (29, 2717510), (58, 1358755), (145, 543502), (290, 271751), (331, 238090), (662, 119045), (821, 95990), (1642, 47995), (1655, 47618), (3310, 23809), (4105, 19198), (8210, 9599)]