205816620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{201781}}^1$

素因数の和:201810

約数の個数: 48

約数和(自身を含む): 610188768

約数和(自身を除く): 404372148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 201781, 403562, 605343, 807124, 1008905, 1210686, 2017810, 2421372, 3026715, 3430277, 4035620, 6053430, 6860554, 10290831, 12106860, 13721108, 17151385, 20581662, 34302770, 41163324, 51454155, 68605540, 102908310, 205816620]

約数ペア:

[(1, 205816620), (2, 102908310), (3, 68605540), (4, 51454155), (5, 41163324), (6, 34302770), (10, 20581662), (12, 17151385), (15, 13721108), (17, 12106860), (20, 10290831), (30, 6860554), (34, 6053430), (51, 4035620), (60, 3430277), (68, 3026715), (85, 2421372), (102, 2017810), (170, 1210686), (204, 1008905), (255, 807124), (340, 605343), (510, 403562), (1020, 201781)]