9989650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:507

約数の個数: 48

約数和(自身を含む): 20811168

約数和(自身を除く): 10821518

約数列:

[1, 2, 5, 10, 11, 22, 25, 41, 50, 55, 82, 110, 205, 275, 410, 443, 451, 550, 886, 902, 1025, 2050, 2215, 2255, 4430, 4510, 4873, 9746, 11075, 11275, 18163, 22150, 22550, 24365, 36326, 48730, 90815, 121825, 181630, 199793, 243650, 399586, 454075, 908150, 998965, 1997930, 4994825, 9989650]

約数ペア:

[(1, 9989650), (2, 4994825), (5, 1997930), (10, 998965), (11, 908150), (22, 454075), (25, 399586), (41, 243650), (50, 199793), (55, 181630), (82, 121825), (110, 90815), (205, 48730), (275, 36326), (410, 24365), (443, 22550), (451, 22150), (550, 18163), (886, 11275), (902, 11075), (1025, 9746), (2050, 4873), (2215, 4510), (2255, 4430)]