8742940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 19160064

約数和(自身を除く): 10417124

約数列:

[1, 2, 4, 5, 10, 20, 47, 71, 94, 131, 142, 188, 235, 262, 284, 355, 470, 524, 655, 710, 940, 1310, 1420, 2620, 3337, 6157, 6674, 9301, 12314, 13348, 16685, 18602, 24628, 30785, 33370, 37204, 46505, 61570, 66740, 93010, 123140, 186020, 437147, 874294, 1748588, 2185735, 4371470, 8742940]

約数ペア:

[(1, 8742940), (2, 4371470), (4, 2185735), (5, 1748588), (10, 874294), (20, 437147), (47, 186020), (71, 123140), (94, 93010), (131, 66740), (142, 61570), (188, 46505), (235, 37204), (262, 33370), (284, 30785), (355, 24628), (470, 18602), (524, 16685), (655, 13348), (710, 12314), (940, 9301), (1310, 6674), (1420, 6157), (2620, 3337)]