121619920

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{7717}}^1$

素因数の和:7927

約数の個数: 40

約数和(自身を含む): 284238504

約数和(自身を除く): 162618584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7717, 7880, 15434, 15760, 30868, 38585, 61736, 77170, 123472, 154340, 308680, 617360, 1520249, 3040498, 6080996, 7601245, 12161992, 15202490, 24323984, 30404980, 60809960, 121619920]

約数ペア:

[(1, 121619920), (2, 60809960), (4, 30404980), (5, 24323984), (8, 15202490), (10, 12161992), (16, 7601245), (20, 6080996), (40, 3040498), (80, 1520249), (197, 617360), (394, 308680), (788, 154340), (985, 123472), (1576, 77170), (1970, 61736), (3152, 38585), (3940, 30868), (7717, 15760), (7880, 15434)]