81197760

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:351

約数の個数: 224

約数和(自身を含む): 302556672

約数和(自身を除く): 221358912

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 43, 48, 56, 60, 64, 70, 80, 84, 86, 96, 105, 112, 120, 129, 140, 160, 168, 172, 192, 210, 215, 224, 240, 258, 280, 281, 301, 320, 336, 344, 420, 430, 448, 480, 516, 560, 562, 602, 645, 672, 688, 840, 843, 860, 903, 960, 1032, 1120, 1124, 1204, 1290, 1344, 1376, 1405, 1505, 1680, 1686, 1720, 1806, 1967, 2064, 2240, 2248, 2408, 2580, 2752, 2810, 3010, 3360, 3372, 3440, 3612, 3934, 4128, 4215, 4496, 4515, 4816, 5160, 5620, 5901, 6020, 6720, 6744, 6880, 7224, 7868, 8256, 8430, 8992, 9030, 9632, 9835, 10320, 11240, 11802, 12040, 12083, 13488, 13760, 14448, 15736, 16860, 17984, 18060, 19264, 19670, 20640, 22480, 23604, 24080, 24166, 26976, 28896, 29505, 31472, 33720, 36120, 36249, 39340, 41280, 44960, 47208, 48160, 48332, 53952, 57792, 59010, 60415, 62944, 67440, 72240, 72498, 78680, 84581, 89920, 94416, 96320, 96664, 118020, 120830, 125888, 134880, 144480, 144996, 157360, 169162, 181245, 188832, 193328, 236040, 241660, 253743, 269760, 288960, 289992, 314720, 338324, 362490, 377664, 386656, 422905, 472080, 483320, 507486, 579984, 629440, 676648, 724980, 773312, 845810, 944160, 966640, 1014972, 1159968, 1268715, 1353296, 1449960, 1691620, 1888320, 1933280, 2029944, 2319936, 2537430, 2706592, 2899920, 3383240, 3866560, 4059888, 5074860, 5413184, 5799840, 6766480, 8119776, 10149720, 11599680, 13532960, 16239552, 20299440, 27065920, 40598880, 81197760]

約数ペア:

[(1, 81197760), (2, 40598880), (3, 27065920), (4, 20299440), (5, 16239552), (6, 13532960), (7, 11599680), (8, 10149720), (10, 8119776), (12, 6766480), (14, 5799840), (15, 5413184), (16, 5074860), (20, 4059888), (21, 3866560), (24, 3383240), (28, 2899920), (30, 2706592), (32, 2537430), (35, 2319936), (40, 2029944), (42, 1933280), (43, 1888320), (48, 1691620), (56, 1449960), (60, 1353296), (64, 1268715), (70, 1159968), (80, 1014972), (84, 966640), (86, 944160), (96, 845810), (105, 773312), (112, 724980), (120, 676648), (129, 629440), (140, 579984), (160, 507486), (168, 483320), (172, 472080), (192, 422905), (210, 386656), (215, 377664), (224, 362490), (240, 338324), (258, 314720), (280, 289992), (281, 288960), (301, 269760), (320, 253743), (336, 241660), (344, 236040), (420, 193328), (430, 188832), (448, 181245), (480, 169162), (516, 157360), (560, 144996), (562, 144480), (602, 134880), (645, 125888), (672, 120830), (688, 118020), (840, 96664), (843, 96320), (860, 94416), (903, 89920), (960, 84581), (1032, 78680), (1120, 72498), (1124, 72240), (1204, 67440), (1290, 62944), (1344, 60415), (1376, 59010), (1405, 57792), (1505, 53952), (1680, 48332), (1686, 48160), (1720, 47208), (1806, 44960), (1967, 41280), (2064, 39340), (2240, 36249), (2248, 36120), (2408, 33720), (2580, 31472), (2752, 29505), (2810, 28896), (3010, 26976), (3360, 24166), (3372, 24080), (3440, 23604), (3612, 22480), (3934, 20640), (4128, 19670), (4215, 19264), (4496, 18060), (4515, 17984), (4816, 16860), (5160, 15736), (5620, 14448), (5901, 13760), (6020, 13488), (6720, 12083), (6744, 12040), (6880, 11802), (7224, 11240), (7868, 10320), (8256, 9835), (8430, 9632), (8992, 9030)]