218303750

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:499

約数の個数: 80

約数和(自身を含む): 476472480

約数和(自身を除く): 258168730

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 61, 70, 122, 125, 175, 250, 305, 350, 409, 427, 610, 625, 818, 854, 875, 1250, 1525, 1750, 2045, 2135, 2863, 3050, 4090, 4270, 4375, 5726, 7625, 8750, 10225, 10675, 14315, 15250, 20450, 21350, 24949, 28630, 38125, 49898, 51125, 53375, 71575, 76250, 102250, 106750, 124745, 143150, 174643, 249490, 255625, 266875, 349286, 357875, 511250, 533750, 623725, 715750, 873215, 1247450, 1746430, 1789375, 3118625, 3578750, 4366075, 6237250, 8732150, 15593125, 21830375, 31186250, 43660750, 109151875, 218303750]

約数ペア:

[(1, 218303750), (2, 109151875), (5, 43660750), (7, 31186250), (10, 21830375), (14, 15593125), (25, 8732150), (35, 6237250), (50, 4366075), (61, 3578750), (70, 3118625), (122, 1789375), (125, 1746430), (175, 1247450), (250, 873215), (305, 715750), (350, 623725), (409, 533750), (427, 511250), (610, 357875), (625, 349286), (818, 266875), (854, 255625), (875, 249490), (1250, 174643), (1525, 143150), (1750, 124745), (2045, 106750), (2135, 102250), (2863, 76250), (3050, 71575), (4090, 53375), (4270, 51125), (4375, 49898), (5726, 38125), (7625, 28630), (8750, 24949), (10225, 21350), (10675, 20450), (14315, 15250)]