81926880

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{659}}^1$

素因数の和:721

約数の個数: 192

約数和(自身を含む): 303367680

約数和(自身を除く): 221440800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 37, 40, 42, 48, 56, 60, 70, 74, 80, 84, 96, 105, 111, 112, 120, 140, 148, 160, 168, 185, 210, 222, 224, 240, 259, 280, 296, 336, 370, 420, 444, 480, 518, 555, 560, 592, 659, 672, 740, 777, 840, 888, 1036, 1110, 1120, 1184, 1295, 1318, 1480, 1554, 1680, 1776, 1977, 2072, 2220, 2590, 2636, 2960, 3108, 3295, 3360, 3552, 3885, 3954, 4144, 4440, 4613, 5180, 5272, 5920, 6216, 6590, 7770, 7908, 8288, 8880, 9226, 9885, 10360, 10544, 12432, 13180, 13839, 15540, 15816, 17760, 18452, 19770, 20720, 21088, 23065, 24383, 24864, 26360, 27678, 31080, 31632, 36904, 39540, 41440, 46130, 48766, 52720, 55356, 62160, 63264, 69195, 73149, 73808, 79080, 92260, 97532, 105440, 110712, 121915, 124320, 138390, 146298, 147616, 158160, 170681, 184520, 195064, 221424, 243830, 276780, 292596, 316320, 341362, 365745, 369040, 390128, 442848, 487660, 512043, 553560, 585192, 682724, 731490, 738080, 780256, 853405, 975320, 1024086, 1107120, 1170384, 1365448, 1462980, 1706810, 1950640, 2048172, 2214240, 2340768, 2560215, 2730896, 2925960, 3413620, 3901280, 4096344, 5120430, 5461792, 5851920, 6827240, 8192688, 10240860, 11703840, 13654480, 16385376, 20481720, 27308960, 40963440, 81926880]

約数ペア:

[(1, 81926880), (2, 40963440), (3, 27308960), (4, 20481720), (5, 16385376), (6, 13654480), (7, 11703840), (8, 10240860), (10, 8192688), (12, 6827240), (14, 5851920), (15, 5461792), (16, 5120430), (20, 4096344), (21, 3901280), (24, 3413620), (28, 2925960), (30, 2730896), (32, 2560215), (35, 2340768), (37, 2214240), (40, 2048172), (42, 1950640), (48, 1706810), (56, 1462980), (60, 1365448), (70, 1170384), (74, 1107120), (80, 1024086), (84, 975320), (96, 853405), (105, 780256), (111, 738080), (112, 731490), (120, 682724), (140, 585192), (148, 553560), (160, 512043), (168, 487660), (185, 442848), (210, 390128), (222, 369040), (224, 365745), (240, 341362), (259, 316320), (280, 292596), (296, 276780), (336, 243830), (370, 221424), (420, 195064), (444, 184520), (480, 170681), (518, 158160), (555, 147616), (560, 146298), (592, 138390), (659, 124320), (672, 121915), (740, 110712), (777, 105440), (840, 97532), (888, 92260), (1036, 79080), (1110, 73808), (1120, 73149), (1184, 69195), (1295, 63264), (1318, 62160), (1480, 55356), (1554, 52720), (1680, 48766), (1776, 46130), (1977, 41440), (2072, 39540), (2220, 36904), (2590, 31632), (2636, 31080), (2960, 27678), (3108, 26360), (3295, 24864), (3360, 24383), (3552, 23065), (3885, 21088), (3954, 20720), (4144, 19770), (4440, 18452), (4613, 17760), (5180, 15816), (5272, 15540), (5920, 13839), (6216, 13180), (6590, 12432), (7770, 10544), (7908, 10360), (8288, 9885), (8880, 9226)]