18849560

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1187}}^1$

素因数の和:1595

約数の個数: 32

約数和(自身を含む): 42554160

約数和(自身を除く): 23704600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1187, 1588, 1985, 2374, 3176, 3970, 4748, 5935, 7940, 9496, 11870, 15880, 23740, 47480, 471239, 942478, 1884956, 2356195, 3769912, 4712390, 9424780, 18849560]

約数ペア:

[(1, 18849560), (2, 9424780), (4, 4712390), (5, 3769912), (8, 2356195), (10, 1884956), (20, 942478), (40, 471239), (397, 47480), (794, 23740), (1187, 15880), (1588, 11870), (1985, 9496), (2374, 7940), (3176, 5935), (3970, 4748)]