78815570

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{2953}}^1$

素因数の和:3134

約数の個数: 32

約数和(自身を含む): 151221168

約数和(自身を除く): 72405598

約数列:

[1, 2, 5, 10, 17, 34, 85, 157, 170, 314, 785, 1570, 2669, 2953, 5338, 5906, 13345, 14765, 26690, 29530, 50201, 100402, 251005, 463621, 502010, 927242, 2318105, 4636210, 7881557, 15763114, 39407785, 78815570]

約数ペア:

[(1, 78815570), (2, 39407785), (5, 15763114), (10, 7881557), (17, 4636210), (34, 2318105), (85, 927242), (157, 502010), (170, 463621), (314, 251005), (785, 100402), (1570, 50201), (2669, 29530), (2953, 26690), (5338, 14765), (5906, 13345)]