18327280

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1187}}^1$

素因数の和:1393

約数の個数: 40

約数和(自身を含む): 42867792

約数和(自身を除く): 24540512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1187, 1544, 1930, 2374, 3088, 3860, 4748, 5935, 7720, 9496, 11870, 15440, 18992, 23740, 47480, 94960, 229091, 458182, 916364, 1145455, 1832728, 2290910, 3665456, 4581820, 9163640, 18327280]

約数ペア:

[(1, 18327280), (2, 9163640), (4, 4581820), (5, 3665456), (8, 2290910), (10, 1832728), (16, 1145455), (20, 916364), (40, 458182), (80, 229091), (193, 94960), (386, 47480), (772, 23740), (965, 18992), (1187, 15440), (1544, 11870), (1930, 9496), (2374, 7720), (3088, 5935), (3860, 4748)]