20972600

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9533}}^1$

素因数の和:9560

約数の個数: 48

約数和(自身を含む): 53199720

約数和(自身を除く): 32227120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9533, 19066, 38132, 47665, 76264, 95330, 104863, 190660, 209726, 238325, 381320, 419452, 476650, 524315, 838904, 953300, 1048630, 1906600, 2097260, 2621575, 4194520, 5243150, 10486300, 20972600]

約数ペア:

[(1, 20972600), (2, 10486300), (4, 5243150), (5, 4194520), (8, 2621575), (10, 2097260), (11, 1906600), (20, 1048630), (22, 953300), (25, 838904), (40, 524315), (44, 476650), (50, 419452), (55, 381320), (88, 238325), (100, 209726), (110, 190660), (200, 104863), (220, 95330), (275, 76264), (440, 47665), (550, 38132), (1100, 19066), (2200, 9533)]