217137740

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1\times {\mathrm{463}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 463034880

約数和(自身を除く): 245897140

約数列:

[1, 2, 4, 5, 10, 20, 131, 179, 262, 358, 463, 524, 655, 716, 895, 926, 1310, 1790, 1852, 2315, 2620, 3580, 4630, 9260, 23449, 46898, 60653, 82877, 93796, 117245, 121306, 165754, 234490, 242612, 303265, 331508, 414385, 468980, 606530, 828770, 1213060, 1657540, 10856887, 21713774, 43427548, 54284435, 108568870, 217137740]

約数ペア:

[(1, 217137740), (2, 108568870), (4, 54284435), (5, 43427548), (10, 21713774), (20, 10856887), (131, 1657540), (179, 1213060), (262, 828770), (358, 606530), (463, 468980), (524, 414385), (655, 331508), (716, 303265), (895, 242612), (926, 234490), (1310, 165754), (1790, 121306), (1852, 117245), (2315, 93796), (2620, 82877), (3580, 60653), (4630, 46898), (9260, 23449)]