2562178521

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 4080384000

約数和(自身を除く): 1518205479

約数列:

[1, 3, 7, 21, 43, 129, 137, 139, 149, 301, 411, 417, 447, 903, 959, 973, 1043, 2877, 2919, 3129, 5891, 5977, 6407, 17673, 17931, 19043, 19221, 20413, 20711, 41237, 41839, 44849, 57129, 61239, 62133, 123711, 125517, 133301, 134547, 142891, 144977, 399903, 428673, 434931, 818849, 877759, 890573, 2456547, 2633277, 2671719, 2837407, 5731943, 6144313, 6234011, 8512221, 17195829, 18432939, 18702033, 19861849, 59585547, 122008501, 366025503, 854059507, 2562178521]

約数ペア:

[(1, 2562178521), (3, 854059507), (7, 366025503), (21, 122008501), (43, 59585547), (129, 19861849), (137, 18702033), (139, 18432939), (149, 17195829), (301, 8512221), (411, 6234011), (417, 6144313), (447, 5731943), (903, 2837407), (959, 2671719), (973, 2633277), (1043, 2456547), (2877, 890573), (2919, 877759), (3129, 818849), (5891, 434931), (5977, 428673), (6407, 399903), (17673, 144977), (17931, 142891), (19043, 134547), (19221, 133301), (20413, 125517), (20711, 123711), (41237, 62133), (41839, 61239), (44849, 57129)]