18739480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20369}}^1$

素因数の和:20403

約数の個数: 32

約数和(自身を含む): 43999200

約数和(自身を除く): 25259720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20369, 40738, 81476, 101845, 162952, 203690, 407380, 468487, 814760, 936974, 1873948, 2342435, 3747896, 4684870, 9369740, 18739480]

約数ペア:

[(1, 18739480), (2, 9369740), (4, 4684870), (5, 3747896), (8, 2342435), (10, 1873948), (20, 936974), (23, 814760), (40, 468487), (46, 407380), (92, 203690), (115, 162952), (184, 101845), (230, 81476), (460, 40738), (920, 20369)]