281315632

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 610460928

約数和(自身を除く): 329145296

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 71, 86, 104, 142, 172, 208, 284, 344, 443, 559, 568, 688, 886, 923, 1118, 1136, 1772, 1846, 2236, 3053, 3544, 3692, 4472, 5759, 6106, 7088, 7384, 8944, 11518, 12212, 14768, 19049, 23036, 24424, 31453, 38098, 39689, 46072, 48848, 62906, 76196, 79378, 92144, 125812, 152392, 158756, 247637, 251624, 304784, 317512, 408889, 495274, 503248, 635024, 817778, 990548, 1352479, 1635556, 1981096, 2704958, 3271112, 3962192, 5409916, 6542224, 10819832, 17582227, 21639664, 35164454, 70328908, 140657816, 281315632]

約数ペア:

[(1, 281315632), (2, 140657816), (4, 70328908), (8, 35164454), (13, 21639664), (16, 17582227), (26, 10819832), (43, 6542224), (52, 5409916), (71, 3962192), (86, 3271112), (104, 2704958), (142, 1981096), (172, 1635556), (208, 1352479), (284, 990548), (344, 817778), (443, 635024), (559, 503248), (568, 495274), (688, 408889), (886, 317512), (923, 304784), (1118, 251624), (1136, 247637), (1772, 158756), (1846, 152392), (2236, 125812), (3053, 92144), (3544, 79378), (3692, 76196), (4472, 62906), (5759, 48848), (6106, 46072), (7088, 39689), (7384, 38098), (8944, 31453), (11518, 24424), (12212, 23036), (14768, 19049)]