2020147984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{449}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 4156876800

約数和(自身を除く): 2136728816

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 193, 248, 376, 386, 449, 496, 752, 772, 898, 1457, 1544, 1796, 2914, 3088, 3592, 5828, 5983, 7184, 9071, 11656, 11966, 13919, 18142, 21103, 23312, 23932, 27838, 36284, 42206, 47864, 55676, 72568, 84412, 86657, 95728, 111352, 145136, 168824, 173314, 222704, 281201, 337648, 346628, 562402, 654193, 693256, 1124804, 1308386, 1386512, 2249608, 2616772, 2686367, 4072879, 4499216, 5233544, 5372734, 8145758, 10467088, 10745468, 16291516, 21490936, 32583032, 42981872, 65166064, 126259249, 252518498, 505036996, 1010073992, 2020147984]

約数ペア:

[(1, 2020147984), (2, 1010073992), (4, 505036996), (8, 252518498), (16, 126259249), (31, 65166064), (47, 42981872), (62, 32583032), (94, 21490936), (124, 16291516), (188, 10745468), (193, 10467088), (248, 8145758), (376, 5372734), (386, 5233544), (449, 4499216), (496, 4072879), (752, 2686367), (772, 2616772), (898, 2249608), (1457, 1386512), (1544, 1308386), (1796, 1124804), (2914, 693256), (3088, 654193), (3592, 562402), (5828, 346628), (5983, 337648), (7184, 281201), (9071, 222704), (11656, 173314), (11966, 168824), (13919, 145136), (18142, 111352), (21103, 95728), (23312, 86657), (23932, 84412), (27838, 72568), (36284, 55676), (42206, 47864)]