128971640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:325

約数の個数: 128

約数和(自身を含む): 348019200

約数和(自身を除く): 219047560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 59, 70, 74, 118, 140, 148, 185, 211, 236, 259, 280, 295, 296, 370, 413, 422, 472, 518, 590, 740, 826, 844, 1036, 1055, 1180, 1295, 1477, 1480, 1652, 1688, 2065, 2072, 2110, 2183, 2360, 2590, 2954, 3304, 4130, 4220, 4366, 5180, 5908, 7385, 7807, 8260, 8440, 8732, 10360, 10915, 11816, 12449, 14770, 15281, 15614, 16520, 17464, 21830, 24898, 29540, 30562, 31228, 39035, 43660, 49796, 54649, 59080, 61124, 62245, 62456, 76405, 78070, 87143, 87320, 99592, 109298, 122248, 124490, 152810, 156140, 174286, 218596, 248980, 273245, 305620, 312280, 348572, 435715, 437192, 460613, 497960, 546490, 611240, 697144, 871430, 921226, 1092980, 1742860, 1842452, 2185960, 2303065, 3224291, 3485720, 3684904, 4606130, 6448582, 9212260, 12897164, 16121455, 18424520, 25794328, 32242910, 64485820, 128971640]

約数ペア:

[(1, 128971640), (2, 64485820), (4, 32242910), (5, 25794328), (7, 18424520), (8, 16121455), (10, 12897164), (14, 9212260), (20, 6448582), (28, 4606130), (35, 3684904), (37, 3485720), (40, 3224291), (56, 2303065), (59, 2185960), (70, 1842452), (74, 1742860), (118, 1092980), (140, 921226), (148, 871430), (185, 697144), (211, 611240), (236, 546490), (259, 497960), (280, 460613), (295, 437192), (296, 435715), (370, 348572), (413, 312280), (422, 305620), (472, 273245), (518, 248980), (590, 218596), (740, 174286), (826, 156140), (844, 152810), (1036, 124490), (1055, 122248), (1180, 109298), (1295, 99592), (1477, 87320), (1480, 87143), (1652, 78070), (1688, 76405), (2065, 62456), (2072, 62245), (2110, 61124), (2183, 59080), (2360, 54649), (2590, 49796), (2954, 43660), (3304, 39035), (4130, 31228), (4220, 30562), (4366, 29540), (5180, 24898), (5908, 21830), (7385, 17464), (7807, 16520), (8260, 15614), (8440, 15281), (8732, 14770), (10360, 12449), (10915, 11816)]