81353020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{14173}}^1$

素因数の和:14230

約数の個数: 48

約数和(自身を含む): 200023488

約数和(自身を除く): 118670468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5740, 14173, 28346, 56692, 70865, 99211, 141730, 198422, 283460, 396844, 496055, 581093, 992110, 1162186, 1984220, 2324372, 2905465, 4067651, 5810930, 8135302, 11621860, 16270604, 20338255, 40676510, 81353020]

約数ペア:

[(1, 81353020), (2, 40676510), (4, 20338255), (5, 16270604), (7, 11621860), (10, 8135302), (14, 5810930), (20, 4067651), (28, 2905465), (35, 2324372), (41, 1984220), (70, 1162186), (82, 992110), (140, 581093), (164, 496055), (205, 396844), (287, 283460), (410, 198422), (574, 141730), (820, 99211), (1148, 70865), (1435, 56692), (2870, 28346), (5740, 14173)]