1640720455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{541}}^1\times {\mathrm{823}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 2186592768

約数和(自身を除く): 545872313

約数列:

[1, 5, 11, 55, 67, 335, 541, 737, 823, 2705, 3685, 4115, 5951, 9053, 29755, 36247, 45265, 55141, 181235, 275705, 398717, 445243, 606551, 1993585, 2226215, 3032755, 4897673, 24488365, 29831281, 149156405, 328144091, 1640720455]

約数ペア:

[(1, 1640720455), (5, 328144091), (11, 149156405), (55, 29831281), (67, 24488365), (335, 4897673), (541, 3032755), (737, 2226215), (823, 1993585), (2705, 606551), (3685, 445243), (4115, 398717), (5951, 275705), (9053, 181235), (29755, 55141), (36247, 45265)]