18578640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:604

約数の個数: 80

約数和(自身を含む): 58032000

約数和(自身を除く): 39453360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 199, 240, 389, 398, 597, 778, 796, 995, 1167, 1194, 1556, 1592, 1945, 1990, 2334, 2388, 2985, 3112, 3184, 3890, 3980, 4668, 4776, 5835, 5970, 6224, 7780, 7960, 9336, 9552, 11670, 11940, 15560, 15920, 18672, 23340, 23880, 31120, 46680, 47760, 77411, 93360, 154822, 232233, 309644, 387055, 464466, 619288, 774110, 928932, 1161165, 1238576, 1548220, 1857864, 2322330, 3096440, 3715728, 4644660, 6192880, 9289320, 18578640]

約数ペア:

[(1, 18578640), (2, 9289320), (3, 6192880), (4, 4644660), (5, 3715728), (6, 3096440), (8, 2322330), (10, 1857864), (12, 1548220), (15, 1238576), (16, 1161165), (20, 928932), (24, 774110), (30, 619288), (40, 464466), (48, 387055), (60, 309644), (80, 232233), (120, 154822), (199, 93360), (240, 77411), (389, 47760), (398, 46680), (597, 31120), (778, 23880), (796, 23340), (995, 18672), (1167, 15920), (1194, 15560), (1556, 11940), (1592, 11670), (1945, 9552), (1990, 9336), (2334, 7960), (2388, 7780), (2985, 6224), (3112, 5970), (3184, 5835), (3890, 4776), (3980, 4668)]