18041220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1373}}^1$

素因数の和:1461

約数の個数: 72

約数和(自身を含む): 55515096

約数和(自身を除く): 37473876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1373, 1460, 2190, 2628, 2746, 3285, 4119, 4380, 5492, 6570, 6865, 8238, 12357, 13140, 13730, 16476, 20595, 24714, 27460, 41190, 49428, 61785, 82380, 100229, 123570, 200458, 247140, 300687, 400916, 501145, 601374, 902061, 1002290, 1202748, 1503435, 1804122, 2004580, 3006870, 3608244, 4510305, 6013740, 9020610, 18041220]

約数ペア:

[(1, 18041220), (2, 9020610), (3, 6013740), (4, 4510305), (5, 3608244), (6, 3006870), (9, 2004580), (10, 1804122), (12, 1503435), (15, 1202748), (18, 1002290), (20, 902061), (30, 601374), (36, 501145), (45, 400916), (60, 300687), (73, 247140), (90, 200458), (146, 123570), (180, 100229), (219, 82380), (292, 61785), (365, 49428), (438, 41190), (657, 27460), (730, 24714), (876, 20595), (1095, 16476), (1314, 13730), (1373, 13140), (1460, 12357), (2190, 8238), (2628, 6865), (2746, 6570), (3285, 5492), (4119, 4380)]