20217507860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{394411}}^1$

素因数の和:394664

約数の個数: 48

約数和(自身を含む): 46515373632

約数和(自身を除く): 26297865772

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 233, 466, 932, 1165, 2330, 2563, 4660, 5126, 10252, 12815, 25630, 51260, 394411, 788822, 1577644, 1972055, 3944110, 4338521, 7888220, 8677042, 17354084, 21692605, 43385210, 86770420, 91897763, 183795526, 367591052, 459488815, 918977630, 1010875393, 1837955260, 2021750786, 4043501572, 5054376965, 10108753930, 20217507860]

約数ペア:

[(1, 20217507860), (2, 10108753930), (4, 5054376965), (5, 4043501572), (10, 2021750786), (11, 1837955260), (20, 1010875393), (22, 918977630), (44, 459488815), (55, 367591052), (110, 183795526), (220, 91897763), (233, 86770420), (466, 43385210), (932, 21692605), (1165, 17354084), (2330, 8677042), (2563, 7888220), (4660, 4338521), (5126, 3944110), (10252, 1972055), (12815, 1577644), (25630, 788822), (51260, 394411)]