9478640

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1087}}^1$

素因数の和:1209

約数の個数: 40

約数和(自身を含む): 22260480

約数和(自身を除く): 12781840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1087, 1090, 1744, 2174, 2180, 4348, 4360, 5435, 8696, 8720, 10870, 17392, 21740, 43480, 86960, 118483, 236966, 473932, 592415, 947864, 1184830, 1895728, 2369660, 4739320, 9478640]

約数ペア:

[(1, 9478640), (2, 4739320), (4, 2369660), (5, 1895728), (8, 1184830), (10, 947864), (16, 592415), (20, 473932), (40, 236966), (80, 118483), (109, 86960), (218, 43480), (436, 21740), (545, 17392), (872, 10870), (1087, 8720), (1090, 8696), (1744, 5435), (2174, 4360), (2180, 4348)]