80723440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3067}}^1$

素因数の和:3134

約数の個数: 80

約数和(自身を含む): 219128832

約数和(自身を除く): 138405392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 752, 940, 1316, 1645, 1880, 2632, 3067, 3290, 3760, 5264, 6134, 6580, 12268, 13160, 15335, 21469, 24536, 26320, 30670, 42938, 49072, 61340, 85876, 107345, 122680, 144149, 171752, 214690, 245360, 288298, 343504, 429380, 576596, 720745, 858760, 1009043, 1153192, 1441490, 1717520, 2018086, 2306384, 2882980, 4036172, 5045215, 5765960, 8072344, 10090430, 11531920, 16144688, 20180860, 40361720, 80723440]

約数ペア:

[(1, 80723440), (2, 40361720), (4, 20180860), (5, 16144688), (7, 11531920), (8, 10090430), (10, 8072344), (14, 5765960), (16, 5045215), (20, 4036172), (28, 2882980), (35, 2306384), (40, 2018086), (47, 1717520), (56, 1441490), (70, 1153192), (80, 1009043), (94, 858760), (112, 720745), (140, 576596), (188, 429380), (235, 343504), (280, 288298), (329, 245360), (376, 214690), (470, 171752), (560, 144149), (658, 122680), (752, 107345), (940, 85876), (1316, 61340), (1645, 49072), (1880, 42938), (2632, 30670), (3067, 26320), (3290, 24536), (3760, 21469), (5264, 15335), (6134, 13160), (6580, 12268)]