82162780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{1153}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 197749440

約数和(自身を除く): 115586660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509, 1018, 1153, 2036, 2306, 2545, 3563, 4612, 5090, 5765, 7126, 8071, 10180, 11530, 14252, 16142, 17815, 23060, 32284, 35630, 40355, 71260, 80710, 161420, 586877, 1173754, 2347508, 2934385, 4108139, 5868770, 8216278, 11737540, 16432556, 20540695, 41081390, 82162780]

約数ペア:

[(1, 82162780), (2, 41081390), (4, 20540695), (5, 16432556), (7, 11737540), (10, 8216278), (14, 5868770), (20, 4108139), (28, 2934385), (35, 2347508), (70, 1173754), (140, 586877), (509, 161420), (1018, 80710), (1153, 71260), (2036, 40355), (2306, 35630), (2545, 32284), (3563, 23060), (4612, 17815), (5090, 16142), (5765, 14252), (7126, 11530), (8071, 10180)]