20408049795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1987}}^1\times {\mathrm{3373}}^1$

素因数の和:5404

約数の個数: 64

約数和(自身を含む): 38635269120

約数和(自身を除く): 18227219325

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 1987, 3045, 3373, 5961, 9935, 10119, 13909, 16865, 23611, 29805, 41727, 50595, 57623, 69545, 70833, 97817, 118055, 172869, 208635, 288115, 293451, 354165, 403361, 489085, 684719, 864345, 1210083, 1467255, 2016805, 2054157, 3423595, 6050415, 6702151, 10270785, 20106453, 33510755, 46915057, 100532265, 140745171, 194362379, 234575285, 583087137, 703725855, 971811895, 1360536653, 2915435685, 4081609959, 6802683265, 20408049795]

約数ペア:

[(1, 20408049795), (3, 6802683265), (5, 4081609959), (7, 2915435685), (15, 1360536653), (21, 971811895), (29, 703725855), (35, 583087137), (87, 234575285), (105, 194362379), (145, 140745171), (203, 100532265), (435, 46915057), (609, 33510755), (1015, 20106453), (1987, 10270785), (3045, 6702151), (3373, 6050415), (5961, 3423595), (9935, 2054157), (10119, 2016805), (13909, 1467255), (16865, 1210083), (23611, 864345), (29805, 684719), (41727, 489085), (50595, 403361), (57623, 354165), (69545, 293451), (70833, 288115), (97817, 208635), (118055, 172869)]