81978840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{227719}}^1$

素因数の和:227736

約数の個数: 48

約数和(自身を含む): 266432400

約数和(自身を除く): 184453560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 227719, 455438, 683157, 910876, 1138595, 1366314, 1821752, 2049471, 2277190, 2732628, 3415785, 4098942, 4554380, 5465256, 6831570, 8197884, 9108760, 10247355, 13663140, 16395768, 20494710, 27326280, 40989420, 81978840]

約数ペア:

[(1, 81978840), (2, 40989420), (3, 27326280), (4, 20494710), (5, 16395768), (6, 13663140), (8, 10247355), (9, 9108760), (10, 8197884), (12, 6831570), (15, 5465256), (18, 4554380), (20, 4098942), (24, 3415785), (30, 2732628), (36, 2277190), (40, 2049471), (45, 1821752), (60, 1366314), (72, 1138595), (90, 910876), (120, 683157), (180, 455438), (360, 227719)]