20218673600

素因数分解:

$2^6\times 5^2\times {\mathrm{1297}}^1\times {\mathrm{9743}}^1$

素因数の和:11062

約数の個数: 84

約数和(自身を含む): 49794042144

約数和(自身を除く): 29575368544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1297, 1600, 2594, 5188, 6485, 9743, 10376, 12970, 19486, 20752, 25940, 32425, 38972, 41504, 48715, 51880, 64850, 77944, 83008, 97430, 103760, 129700, 155888, 194860, 207520, 243575, 259400, 311776, 389720, 415040, 487150, 518800, 623552, 779440, 974300, 1037600, 1558880, 1948600, 2075200, 3117760, 3897200, 7794400, 12636671, 15588800, 25273342, 50546684, 63183355, 101093368, 126366710, 202186736, 252733420, 315916775, 404373472, 505466840, 631833550, 808746944, 1010933680, 1263667100, 2021867360, 2527334200, 4043734720, 5054668400, 10109336800, 20218673600]

約数ペア:

[(1, 20218673600), (2, 10109336800), (4, 5054668400), (5, 4043734720), (8, 2527334200), (10, 2021867360), (16, 1263667100), (20, 1010933680), (25, 808746944), (32, 631833550), (40, 505466840), (50, 404373472), (64, 315916775), (80, 252733420), (100, 202186736), (160, 126366710), (200, 101093368), (320, 63183355), (400, 50546684), (800, 25273342), (1297, 15588800), (1600, 12636671), (2594, 7794400), (5188, 3897200), (6485, 3117760), (9743, 2075200), (10376, 1948600), (12970, 1558880), (19486, 1037600), (20752, 974300), (25940, 779440), (32425, 623552), (38972, 518800), (41504, 487150), (48715, 415040), (51880, 389720), (64850, 311776), (77944, 259400), (83008, 243575), (97430, 207520), (103760, 194860), (129700, 155888)]