20246005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 27433728

約数和(自身を除く): 7187723

約数列:

[1, 5, 13, 41, 65, 71, 107, 205, 355, 533, 535, 923, 1391, 2665, 2911, 4387, 4615, 6955, 7597, 14555, 21935, 37843, 37985, 57031, 98761, 189215, 285155, 311477, 493805, 1557385, 4049201, 20246005]

約数ペア:

[(1, 20246005), (5, 4049201), (13, 1557385), (41, 493805), (65, 311477), (71, 285155), (107, 189215), (205, 98761), (355, 57031), (533, 37985), (535, 37843), (923, 21935), (1391, 14555), (2665, 7597), (2911, 6955), (4387, 4615)]