20278315785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{873877}}^1$

素因数の和:873922

約数の個数: 64

約数和(自身を含む): 42281713152

約数和(自身を除く): 22003397367

約数列:

[1, 3, 5, 7, 13, 15, 17, 21, 35, 39, 51, 65, 85, 91, 105, 119, 195, 221, 255, 273, 357, 455, 595, 663, 1105, 1365, 1547, 1785, 3315, 4641, 7735, 23205, 873877, 2621631, 4369385, 6117139, 11360401, 13108155, 14855909, 18351417, 30585695, 34081203, 44567727, 56802005, 74279545, 79522807, 91757085, 103991363, 170406015, 193126817, 222838635, 238568421, 311974089, 397614035, 519956815, 579380451, 965634085, 1192842105, 1351887719, 1559870445, 2896902255, 4055663157, 6759438595, 20278315785]

約数ペア:

[(1, 20278315785), (3, 6759438595), (5, 4055663157), (7, 2896902255), (13, 1559870445), (15, 1351887719), (17, 1192842105), (21, 965634085), (35, 579380451), (39, 519956815), (51, 397614035), (65, 311974089), (85, 238568421), (91, 222838635), (105, 193126817), (119, 170406015), (195, 103991363), (221, 91757085), (255, 79522807), (273, 74279545), (357, 56802005), (455, 44567727), (595, 34081203), (663, 30585695), (1105, 18351417), (1365, 14855909), (1547, 13108155), (1785, 11360401), (3315, 6117139), (4641, 4369385), (7735, 2621631), (23205, 873877)]