18385740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4441}}^1$

素因数の和:4479

約数の個数: 72

約数和(自身を含む): 58207968

約数和(自身を除く): 39822228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4441, 8882, 13323, 17764, 22205, 26646, 39969, 44410, 53292, 66615, 79938, 88820, 102143, 133230, 159876, 199845, 204286, 266460, 306429, 399690, 408572, 510715, 612858, 799380, 919287, 1021430, 1225716, 1532145, 1838574, 2042860, 3064290, 3677148, 4596435, 6128580, 9192870, 18385740]

約数ペア:

[(1, 18385740), (2, 9192870), (3, 6128580), (4, 4596435), (5, 3677148), (6, 3064290), (9, 2042860), (10, 1838574), (12, 1532145), (15, 1225716), (18, 1021430), (20, 919287), (23, 799380), (30, 612858), (36, 510715), (45, 408572), (46, 399690), (60, 306429), (69, 266460), (90, 204286), (92, 199845), (115, 159876), (138, 133230), (180, 102143), (207, 88820), (230, 79938), (276, 66615), (345, 53292), (414, 44410), (460, 39969), (690, 26646), (828, 22205), (1035, 17764), (1380, 13323), (2070, 8882), (4140, 4441)]