39538280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21031}}^1$

素因数の和:21089

約数の個数: 32

約数和(自身を含む): 90858240

約数和(自身を除く): 51319960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 21031, 42062, 84124, 105155, 168248, 210310, 420620, 841240, 988457, 1976914, 3953828, 4942285, 7907656, 9884570, 19769140, 39538280]

約数ペア:

[(1, 39538280), (2, 19769140), (4, 9884570), (5, 7907656), (8, 4942285), (10, 3953828), (20, 1976914), (40, 988457), (47, 841240), (94, 420620), (188, 210310), (235, 168248), (376, 105155), (470, 84124), (940, 42062), (1880, 21031)]