21885539.000000000

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:219

約数の個数: 256

約数和(自身を含む): 539136000

約数和(自身を除く): 389740680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 79, 85, 90, 102, 103, 108, 120, 135, 136, 153, 158, 170, 180, 204, 206, 216, 237, 255, 270, 306, 309, 316, 340, 360, 395, 408, 412, 459, 474, 510, 515, 540, 612, 618, 632, 680, 711, 765, 790, 824, 918, 927, 948, 1020, 1030, 1080, 1185, 1224, 1236, 1343, 1422, 1530, 1545, 1580, 1751, 1836, 1854, 1896, 2040, 2060, 2133, 2295, 2370, 2472, 2686, 2781, 2844, 3060, 3090, 3160, 3502, 3555, 3672, 3708, 4029, 4120, 4266, 4590, 4635, 4740, 5253, 5372, 5562, 5688, 6120, 6180, 6715, 7004, 7110, 7416, 8058, 8137, 8532, 8755, 9180, 9270, 9480, 10506, 10665, 10744, 11124, 12087, 12360, 13430, 13905, 14008, 14220, 15759, 16116, 16274, 17064, 17510, 18360, 18540, 20145, 21012, 21330, 22248, 24174, 24411, 26265, 26860, 27810, 28440, 31518, 32232, 32548, 35020, 36261, 37080, 40290, 40685, 42024, 42660, 47277, 48348, 48822, 52530, 53720, 55620, 60435, 63036, 65096, 70040, 72522, 73233, 78795, 80580, 81370, 85320, 94554, 96696, 97644, 105060, 111240, 120870, 122055, 126072, 138329, 145044, 146466, 157590, 161160, 162740, 181305, 189108, 195288, 210120, 219699, 236385, 241740, 244110, 276658, 290088, 292932, 315180, 325480, 362610, 366165, 378216, 414987, 439398, 472770, 483480, 488220, 553316, 585864, 630360, 691645, 725220, 732330, 829974, 878796, 945540, 976440, 1098495, 1106632, 1244961, 1383290, 1450440, 1464660, 1659948, 1757592, 1891080, 2074935, 2196990, 2489922, 2766580, 2929320, 3319896, 3734883, 4149870, 4393980, 4979844, 5533160, 6224805, 7469766, 8299740, 8787960, 9959688, 12449610, 14939532, 16599480, 18674415, 24899220, 29879064, 37348830, 49798440, 74697660, 149395320]

約数ペア:

[(1, 149395320), (2, 74697660), (3, 49798440), (4, 37348830), (5, 29879064), (6, 24899220), (8, 18674415), (9, 16599480), (10, 14939532), (12, 12449610), (15, 9959688), (17, 8787960), (18, 8299740), (20, 7469766), (24, 6224805), (27, 5533160), (30, 4979844), (34, 4393980), (36, 4149870), (40, 3734883), (45, 3319896), (51, 2929320), (54, 2766580), (60, 2489922), (68, 2196990), (72, 2074935), (79, 1891080), (85, 1757592), (90, 1659948), (102, 1464660), (103, 1450440), (108, 1383290), (120, 1244961), (135, 1106632), (136, 1098495), (153, 976440), (158, 945540), (170, 878796), (180, 829974), (204, 732330), (206, 725220), (216, 691645), (237, 630360), (255, 585864), (270, 553316), (306, 488220), (309, 483480), (316, 472770), (340, 439398), (360, 414987), (395, 378216), (408, 366165), (412, 362610), (459, 325480), (474, 315180), (510, 292932), (515, 290088), (540, 276658), (612, 244110), (618, 241740), (632, 236385), (680, 219699), (711, 210120), (765, 195288), (790, 189108), (824, 181305), (918, 162740), (927, 161160), (948, 157590), (1020, 146466), (1030, 145044), (1080, 138329), (1185, 126072), (1224, 122055), (1236, 120870), (1343, 111240), (1422, 105060), (1530, 97644), (1545, 96696), (1580, 94554), (1751, 85320), (1836, 81370), (1854, 80580), (1896, 78795), (2040, 73233), (2060, 72522), (2133, 70040), (2295, 65096), (2370, 63036), (2472, 60435), (2686, 55620), (2781, 53720), (2844, 52530), (3060, 48822), (3090, 48348), (3160, 47277), (3502, 42660), (3555, 42024), (3672, 40685), (3708, 40290), (4029, 37080), (4120, 36261), (4266, 35020), (4590, 32548), (4635, 32232), (4740, 31518), (5253, 28440), (5372, 27810), (5562, 26860), (5688, 26265), (6120, 24411), (6180, 24174), (6715, 22248), (7004, 21330), (7110, 21012), (7416, 20145), (8058, 18540), (8137, 18360), (8532, 17510), (8755, 17064), (9180, 16274), (9270, 16116), (9480, 15759), (10506, 14220), (10665, 14008), (10744, 13905), (11124, 13430), (12087, 12360)]