20554960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13523}}^1$

素因数の和:13555

約数の個数: 40

約数和(自身を含む): 50309280

約数和(自身を除く): 29754320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13523, 27046, 54092, 67615, 108184, 135230, 216368, 256937, 270460, 513874, 540920, 1027748, 1081840, 1284685, 2055496, 2569370, 4110992, 5138740, 10277480, 20554960]

約数ペア:

[(1, 20554960), (2, 10277480), (4, 5138740), (5, 4110992), (8, 2569370), (10, 2055496), (16, 1284685), (19, 1081840), (20, 1027748), (38, 540920), (40, 513874), (76, 270460), (80, 256937), (95, 216368), (152, 135230), (190, 108184), (304, 67615), (380, 54092), (760, 27046), (1520, 13523)]