201651385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 268531200

約数和(自身を除く): 66879815

約数列:

[1, 5, 13, 47, 65, 149, 235, 443, 611, 745, 1937, 2215, 3055, 5759, 7003, 9685, 20821, 28795, 35015, 66007, 91039, 104105, 270673, 330035, 455195, 858091, 1353365, 3102329, 4290455, 15511645, 40330277, 201651385]

約数ペア:

[(1, 201651385), (5, 40330277), (13, 15511645), (47, 4290455), (65, 3102329), (149, 1353365), (235, 858091), (443, 455195), (611, 330035), (745, 270673), (1937, 104105), (2215, 91039), (3055, 66007), (5759, 35015), (7003, 28795), (9685, 20821)]