18156980080

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{21817}}^1$

素因数の和:22034

約数の個数: 80

約数和(自身を含む): 43048833984

約数和(自身を除く): 24891853904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 103, 202, 206, 404, 412, 505, 515, 808, 824, 1010, 1030, 1616, 1648, 2020, 2060, 4040, 4120, 8080, 8240, 10403, 20806, 21817, 41612, 43634, 52015, 83224, 87268, 104030, 109085, 166448, 174536, 208060, 218170, 349072, 416120, 436340, 832240, 872680, 1745360, 2203517, 2247151, 4407034, 4494302, 8814068, 8988604, 11017585, 11235755, 17628136, 17977208, 22035170, 22471510, 35256272, 35954416, 44070340, 44943020, 88140680, 89886040, 176281360, 179772080, 226962251, 453924502, 907849004, 1134811255, 1815698008, 2269622510, 3631396016, 4539245020, 9078490040, 18156980080]

約数ペア:

[(1, 18156980080), (2, 9078490040), (4, 4539245020), (5, 3631396016), (8, 2269622510), (10, 1815698008), (16, 1134811255), (20, 907849004), (40, 453924502), (80, 226962251), (101, 179772080), (103, 176281360), (202, 89886040), (206, 88140680), (404, 44943020), (412, 44070340), (505, 35954416), (515, 35256272), (808, 22471510), (824, 22035170), (1010, 17977208), (1030, 17628136), (1616, 11235755), (1648, 11017585), (2020, 8988604), (2060, 8814068), (4040, 4494302), (4120, 4407034), (8080, 2247151), (8240, 2203517), (10403, 1745360), (20806, 872680), (21817, 832240), (41612, 436340), (43634, 416120), (52015, 349072), (83224, 218170), (87268, 208060), (104030, 174536), (109085, 166448)]