177788210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{2557}}^1$

素因数の和:2990

約数の個数: 32

約数和(自身を含む): 339804720

約数和(自身を除く): 162016510

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 409, 818, 2045, 2557, 4090, 5114, 6953, 12785, 13906, 25570, 34765, 43469, 69530, 86938, 217345, 434690, 1045813, 2091626, 5229065, 10458130, 17778821, 35557642, 88894105, 177788210]

約数ペア:

[(1, 177788210), (2, 88894105), (5, 35557642), (10, 17778821), (17, 10458130), (34, 5229065), (85, 2091626), (170, 1045813), (409, 434690), (818, 217345), (2045, 86938), (2557, 69530), (4090, 43469), (5114, 34765), (6953, 25570), (12785, 13906)]