18103280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{103}}^1$

素因数の和:155

約数の個数: 80

約数和(自身を含む): 46038720

約数和(自身を除く): 27935440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 103, 104, 130, 169, 206, 208, 260, 338, 412, 515, 520, 676, 824, 845, 1030, 1040, 1339, 1352, 1648, 1690, 2060, 2197, 2678, 2704, 3380, 4120, 4394, 5356, 6695, 6760, 8240, 8788, 10712, 10985, 13390, 13520, 17407, 17576, 21424, 21970, 26780, 34814, 35152, 43940, 53560, 69628, 87035, 87880, 107120, 139256, 174070, 175760, 226291, 278512, 348140, 452582, 696280, 905164, 1131455, 1392560, 1810328, 2262910, 3620656, 4525820, 9051640, 18103280]

約数ペア:

[(1, 18103280), (2, 9051640), (4, 4525820), (5, 3620656), (8, 2262910), (10, 1810328), (13, 1392560), (16, 1131455), (20, 905164), (26, 696280), (40, 452582), (52, 348140), (65, 278512), (80, 226291), (103, 175760), (104, 174070), (130, 139256), (169, 107120), (206, 87880), (208, 87035), (260, 69628), (338, 53560), (412, 43940), (515, 35152), (520, 34814), (676, 26780), (824, 21970), (845, 21424), (1030, 17576), (1040, 17407), (1339, 13520), (1352, 13390), (1648, 10985), (1690, 10712), (2060, 8788), (2197, 8240), (2678, 6760), (2704, 6695), (3380, 5356), (4120, 4394)]