18840240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:347

約数の個数: 120

約数和(自身を含む): 64067328

約数和(自身を除く): 45227088

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 137, 144, 180, 191, 240, 274, 360, 382, 411, 548, 573, 685, 720, 764, 822, 955, 1096, 1146, 1233, 1370, 1528, 1644, 1719, 1910, 2055, 2192, 2292, 2466, 2740, 2865, 3056, 3288, 3438, 3820, 4110, 4584, 4932, 5480, 5730, 6165, 6576, 6876, 7640, 8220, 8595, 9168, 9864, 10960, 11460, 12330, 13752, 15280, 16440, 17190, 19728, 22920, 24660, 26167, 27504, 32880, 34380, 45840, 49320, 52334, 68760, 78501, 98640, 104668, 130835, 137520, 157002, 209336, 235503, 261670, 314004, 392505, 418672, 471006, 523340, 628008, 785010, 942012, 1046680, 1177515, 1256016, 1570020, 1884024, 2093360, 2355030, 3140040, 3768048, 4710060, 6280080, 9420120, 18840240]

約数ペア:

[(1, 18840240), (2, 9420120), (3, 6280080), (4, 4710060), (5, 3768048), (6, 3140040), (8, 2355030), (9, 2093360), (10, 1884024), (12, 1570020), (15, 1256016), (16, 1177515), (18, 1046680), (20, 942012), (24, 785010), (30, 628008), (36, 523340), (40, 471006), (45, 418672), (48, 392505), (60, 314004), (72, 261670), (80, 235503), (90, 209336), (120, 157002), (137, 137520), (144, 130835), (180, 104668), (191, 98640), (240, 78501), (274, 68760), (360, 52334), (382, 49320), (411, 45840), (548, 34380), (573, 32880), (685, 27504), (720, 26167), (764, 24660), (822, 22920), (955, 19728), (1096, 17190), (1146, 16440), (1233, 15280), (1370, 13752), (1528, 12330), (1644, 11460), (1719, 10960), (1910, 9864), (2055, 9168), (2192, 8595), (2292, 8220), (2466, 7640), (2740, 6876), (2865, 6576), (3056, 6165), (3288, 5730), (3438, 5480), (3820, 4932), (4110, 4584)]