319560520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:227

約数の個数: 128

約数和(自身を含む): 775526400

約数和(自身を除く): 455965880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 59, 67, 86, 94, 118, 134, 172, 188, 215, 235, 236, 268, 295, 335, 344, 376, 430, 470, 472, 536, 590, 670, 860, 940, 1180, 1340, 1720, 1880, 2021, 2360, 2537, 2680, 2773, 2881, 3149, 3953, 4042, 5074, 5546, 5762, 6298, 7906, 8084, 10105, 10148, 11092, 11524, 12596, 12685, 13865, 14405, 15745, 15812, 16168, 19765, 20210, 20296, 22184, 23048, 25192, 25370, 27730, 28810, 31490, 31624, 39530, 40420, 50740, 55460, 57620, 62980, 79060, 80840, 101480, 110920, 115240, 119239, 125960, 135407, 158120, 169979, 185791, 238478, 270814, 339958, 371582, 476956, 541628, 596195, 677035, 679916, 743164, 849895, 928955, 953912, 1083256, 1192390, 1354070, 1359832, 1486328, 1699790, 1857910, 2384780, 2708140, 3399580, 3715820, 4769560, 5416280, 6799160, 7431640, 7989013, 15978026, 31956052, 39945065, 63912104, 79890130, 159780260, 319560520]

約数ペア:

[(1, 319560520), (2, 159780260), (4, 79890130), (5, 63912104), (8, 39945065), (10, 31956052), (20, 15978026), (40, 7989013), (43, 7431640), (47, 6799160), (59, 5416280), (67, 4769560), (86, 3715820), (94, 3399580), (118, 2708140), (134, 2384780), (172, 1857910), (188, 1699790), (215, 1486328), (235, 1359832), (236, 1354070), (268, 1192390), (295, 1083256), (335, 953912), (344, 928955), (376, 849895), (430, 743164), (470, 679916), (472, 677035), (536, 596195), (590, 541628), (670, 476956), (860, 371582), (940, 339958), (1180, 270814), (1340, 238478), (1720, 185791), (1880, 169979), (2021, 158120), (2360, 135407), (2537, 125960), (2680, 119239), (2773, 115240), (2881, 110920), (3149, 101480), (3953, 80840), (4042, 79060), (5074, 62980), (5546, 57620), (5762, 55460), (6298, 50740), (7906, 40420), (8084, 39530), (10105, 31624), (10148, 31490), (11092, 28810), (11524, 27730), (12596, 25370), (12685, 25192), (13865, 23048), (14405, 22184), (15745, 20296), (15812, 20210), (16168, 19765)]