20557960385

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{29803}}^1$

素因数の和:30017

約数の個数: 32

約数和(自身を含む): 26651928960

約数和(自身を除く): 6093968575

約数列:

[1, 5, 19, 53, 95, 137, 265, 685, 1007, 2603, 5035, 7261, 13015, 29803, 36305, 137959, 149015, 566257, 689795, 1579559, 2831285, 4083011, 7897795, 20415055, 30011621, 77577209, 150058105, 216399583, 387886045, 1081997915, 4111592077, 20557960385]

約数ペア:

[(1, 20557960385), (5, 4111592077), (19, 1081997915), (53, 387886045), (95, 216399583), (137, 150058105), (265, 77577209), (685, 30011621), (1007, 20415055), (2603, 7897795), (5035, 4083011), (7261, 2831285), (13015, 1579559), (29803, 689795), (36305, 566257), (137959, 149015)]