20214040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6563}}^1$

素因数の和:6592

約数の個数: 64

約数和(自身を含む): 56712960

約数和(自身を除く): 36498920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6563, 13126, 26252, 32815, 45941, 52504, 65630, 72193, 91882, 131260, 144386, 183764, 229705, 262520, 288772, 360965, 367528, 459410, 505351, 577544, 721930, 918820, 1010702, 1443860, 1837640, 2021404, 2526755, 2887720, 4042808, 5053510, 10107020, 20214040]

約数ペア:

[(1, 20214040), (2, 10107020), (4, 5053510), (5, 4042808), (7, 2887720), (8, 2526755), (10, 2021404), (11, 1837640), (14, 1443860), (20, 1010702), (22, 918820), (28, 721930), (35, 577544), (40, 505351), (44, 459410), (55, 367528), (56, 360965), (70, 288772), (77, 262520), (88, 229705), (110, 183764), (140, 144386), (154, 131260), (220, 91882), (280, 72193), (308, 65630), (385, 52504), (440, 45941), (616, 32815), (770, 26252), (1540, 13126), (3080, 6563)]