20883560

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3203}}^1$

素因数の和:3377

約数の個数: 32

約数和(自身を含む): 47291040

約数和(自身を除く): 26407480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3203, 3260, 6406, 6520, 12812, 16015, 25624, 32030, 64060, 128120, 522089, 1044178, 2088356, 2610445, 4176712, 5220890, 10441780, 20883560]

約数ペア:

[(1, 20883560), (2, 10441780), (4, 5220890), (5, 4176712), (8, 2610445), (10, 2088356), (20, 1044178), (40, 522089), (163, 128120), (326, 64060), (652, 32030), (815, 25624), (1304, 16015), (1630, 12812), (3203, 6520), (3260, 6406)]