18218280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{967}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 55059840

約数和(自身を除く): 36841560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 967, 1256, 1570, 1884, 1934, 2355, 2901, 3140, 3768, 3868, 4710, 4835, 5802, 6280, 7736, 9420, 9670, 11604, 14505, 18840, 19340, 23208, 29010, 38680, 58020, 116040, 151819, 303638, 455457, 607276, 759095, 910914, 1214552, 1518190, 1821828, 2277285, 3036380, 3643656, 4554570, 6072760, 9109140, 18218280]

約数ペア:

[(1, 18218280), (2, 9109140), (3, 6072760), (4, 4554570), (5, 3643656), (6, 3036380), (8, 2277285), (10, 1821828), (12, 1518190), (15, 1214552), (20, 910914), (24, 759095), (30, 607276), (40, 455457), (60, 303638), (120, 151819), (157, 116040), (314, 58020), (471, 38680), (628, 29010), (785, 23208), (942, 19340), (967, 18840), (1256, 14505), (1570, 11604), (1884, 9670), (1934, 9420), (2355, 7736), (2901, 6280), (3140, 5802), (3768, 4835), (3868, 4710)]