664133750

素因数分解:

$2^1\times 5^4\times 7^3\times {\mathrm{1549}}^1$

素因数の和:1592

約数の個数: 80

約数和(自身を含む): 1452660000

約数和(自身を除く): 788526250

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 343, 350, 490, 625, 686, 875, 1225, 1250, 1549, 1715, 1750, 2450, 3098, 3430, 4375, 6125, 7745, 8575, 8750, 10843, 12250, 15490, 17150, 21686, 30625, 38725, 42875, 54215, 61250, 75901, 77450, 85750, 108430, 151802, 193625, 214375, 271075, 379505, 387250, 428750, 531307, 542150, 759010, 968125, 1062614, 1355375, 1897525, 1936250, 2656535, 2710750, 3795050, 5313070, 6776875, 9487625, 13282675, 13553750, 18975250, 26565350, 47438125, 66413375, 94876250, 132826750, 332066875, 664133750]

約数ペア:

[(1, 664133750), (2, 332066875), (5, 132826750), (7, 94876250), (10, 66413375), (14, 47438125), (25, 26565350), (35, 18975250), (49, 13553750), (50, 13282675), (70, 9487625), (98, 6776875), (125, 5313070), (175, 3795050), (245, 2710750), (250, 2656535), (343, 1936250), (350, 1897525), (490, 1355375), (625, 1062614), (686, 968125), (875, 759010), (1225, 542150), (1250, 531307), (1549, 428750), (1715, 387250), (1750, 379505), (2450, 271075), (3098, 214375), (3430, 193625), (4375, 151802), (6125, 108430), (7745, 85750), (8575, 77450), (8750, 75901), (10843, 61250), (12250, 54215), (15490, 42875), (17150, 38725), (21686, 30625)]