18420840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{51169}}^1$

素因数の和:51186

約数の個数: 48

約数和(自身を含む): 59868900

約数和(自身を除く): 41448060

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, 51169, 102338, 153507, 204676, 255845, 307014, 409352, 460521, 511690, 614028, 767535, 921042, 1023380, 1228056, 1535070, 1842084, 2046760, 2302605, 3070140, 3684168, 4605210, 6140280, 9210420, 18420840]

約数ペア:

[(1, 18420840), (2, 9210420), (3, 6140280), (4, 4605210), (5, 3684168), (6, 3070140), (8, 2302605), (9, 2046760), (10, 1842084), (12, 1535070), (15, 1228056), (18, 1023380), (20, 921042), (24, 767535), (30, 614028), (36, 511690), (40, 460521), (45, 409352), (60, 307014), (72, 255845), (90, 204676), (120, 153507), (180, 102338), (360, 51169)]