128156580

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{331}}^1$

素因数の和:591

約数の個数: 120

約数和(自身を含む): 404933760

約数和(自身を除く): 276777180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 239, 270, 324, 331, 405, 478, 540, 662, 717, 810, 956, 993, 1195, 1324, 1434, 1620, 1655, 1986, 2151, 2390, 2868, 2979, 3310, 3585, 3972, 4302, 4780, 4965, 5958, 6453, 6620, 7170, 8604, 8937, 9930, 10755, 11916, 12906, 14340, 14895, 17874, 19359, 19860, 21510, 25812, 26811, 29790, 32265, 35748, 38718, 43020, 44685, 53622, 59580, 64530, 77436, 79109, 89370, 96795, 107244, 129060, 134055, 158218, 178740, 193590, 237327, 268110, 316436, 387180, 395545, 474654, 536220, 711981, 791090, 949308, 1186635, 1423962, 1582180, 2135943, 2373270, 2847924, 3559905, 4271886, 4746540, 6407829, 7119810, 8543772, 10679715, 12815658, 14239620, 21359430, 25631316, 32039145, 42718860, 64078290, 128156580]

約数ペア:

[(1, 128156580), (2, 64078290), (3, 42718860), (4, 32039145), (5, 25631316), (6, 21359430), (9, 14239620), (10, 12815658), (12, 10679715), (15, 8543772), (18, 7119810), (20, 6407829), (27, 4746540), (30, 4271886), (36, 3559905), (45, 2847924), (54, 2373270), (60, 2135943), (81, 1582180), (90, 1423962), (108, 1186635), (135, 949308), (162, 791090), (180, 711981), (239, 536220), (270, 474654), (324, 395545), (331, 387180), (405, 316436), (478, 268110), (540, 237327), (662, 193590), (717, 178740), (810, 158218), (956, 134055), (993, 129060), (1195, 107244), (1324, 96795), (1434, 89370), (1620, 79109), (1655, 77436), (1986, 64530), (2151, 59580), (2390, 53622), (2868, 44685), (2979, 43020), (3310, 38718), (3585, 35748), (3972, 32265), (4302, 29790), (4780, 26811), (4965, 25812), (5958, 21510), (6453, 19860), (6620, 19359), (7170, 17874), (8604, 14895), (8937, 14340), (9930, 12906), (10755, 11916)]