20483560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16519}}^1$

素因数の和:16561

約数の個数: 32

約数和(自身を含む): 47577600

約数和(自身を除く): 27094040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16519, 33038, 66076, 82595, 132152, 165190, 330380, 512089, 660760, 1024178, 2048356, 2560445, 4096712, 5120890, 10241780, 20483560]

約数ペア:

[(1, 20483560), (2, 10241780), (4, 5120890), (5, 4096712), (8, 2560445), (10, 2048356), (20, 1024178), (31, 660760), (40, 512089), (62, 330380), (124, 165190), (155, 132152), (248, 82595), (310, 66076), (620, 33038), (1240, 16519)]