30481720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10733}}^1$

素因数の和:10815

約数の個数: 32

約数和(自身を含む): 69556320

約数和(自身を除く): 39074600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10733, 21466, 42932, 53665, 85864, 107330, 214660, 429320, 762043, 1524086, 3048172, 3810215, 6096344, 7620430, 15240860, 30481720]

約数ペア:

[(1, 30481720), (2, 15240860), (4, 7620430), (5, 6096344), (8, 3810215), (10, 3048172), (20, 1524086), (40, 762043), (71, 429320), (142, 214660), (284, 107330), (355, 85864), (568, 53665), (710, 42932), (1420, 21466), (2840, 10733)]