85398140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251171}}^1$

素因数の和:251197

約数の個数: 24

約数和(自身を含む): 189886032

約数和(自身を除く): 104487892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 251171, 502342, 1004684, 1255855, 2511710, 4269907, 5023420, 8539814, 17079628, 21349535, 42699070, 85398140]

約数ペア:

[(1, 85398140), (2, 42699070), (4, 21349535), (5, 17079628), (10, 8539814), (17, 5023420), (20, 4269907), (34, 2511710), (68, 1255855), (85, 1004684), (170, 502342), (340, 251171)]