21927500

素因数分解:

$2^2\times 5^4\times 7^2\times {\mathrm{179}}^1$

素因数の和:217

約数の個数: 90

約数和(自身を含む): 56091420

約数和(自身を除く): 34163920

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 179, 196, 245, 250, 350, 358, 490, 500, 625, 700, 716, 875, 895, 980, 1225, 1250, 1253, 1750, 1790, 2450, 2500, 2506, 3500, 3580, 4375, 4475, 4900, 5012, 6125, 6265, 8750, 8771, 8950, 12250, 12530, 17500, 17542, 17900, 22375, 24500, 25060, 30625, 31325, 35084, 43855, 44750, 61250, 62650, 87710, 89500, 111875, 122500, 125300, 156625, 175420, 219275, 223750, 313250, 438550, 447500, 626500, 783125, 877100, 1096375, 1566250, 2192750, 3132500, 4385500, 5481875, 10963750, 21927500]

約数ペア:

[(1, 21927500), (2, 10963750), (4, 5481875), (5, 4385500), (7, 3132500), (10, 2192750), (14, 1566250), (20, 1096375), (25, 877100), (28, 783125), (35, 626500), (49, 447500), (50, 438550), (70, 313250), (98, 223750), (100, 219275), (125, 175420), (140, 156625), (175, 125300), (179, 122500), (196, 111875), (245, 89500), (250, 87710), (350, 62650), (358, 61250), (490, 44750), (500, 43855), (625, 35084), (700, 31325), (716, 30625), (875, 25060), (895, 24500), (980, 22375), (1225, 17900), (1250, 17542), (1253, 17500), (1750, 12530), (1790, 12250), (2450, 8950), (2500, 8771), (2506, 8750), (3500, 6265), (3580, 6125), (4375, 5012), (4475, 4900)]