81269580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:268

約数の個数: 192

約数和(自身を含む): 278691840

約数和(自身を除く): 197422260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 47, 60, 69, 70, 84, 92, 94, 105, 115, 138, 140, 141, 161, 179, 188, 210, 230, 235, 276, 282, 322, 329, 345, 358, 420, 460, 470, 483, 537, 564, 644, 658, 690, 705, 716, 805, 895, 940, 966, 987, 1074, 1081, 1253, 1316, 1380, 1410, 1610, 1645, 1790, 1932, 1974, 2148, 2162, 2415, 2506, 2685, 2820, 3220, 3243, 3290, 3580, 3759, 3948, 4117, 4324, 4830, 4935, 5012, 5370, 5405, 6265, 6486, 6580, 7518, 7567, 8234, 8413, 9660, 9870, 10740, 10810, 12351, 12530, 12972, 15036, 15134, 16215, 16468, 16826, 18795, 19740, 20585, 21620, 22701, 24702, 25060, 25239, 28819, 30268, 32430, 33652, 37590, 37835, 41170, 42065, 45402, 49404, 50478, 57638, 58891, 61755, 64860, 75180, 75670, 82340, 84130, 86457, 90804, 100956, 113505, 115276, 117782, 123510, 126195, 144095, 151340, 168260, 172914, 176673, 193499, 227010, 235564, 247020, 252390, 288190, 294455, 345828, 353346, 386998, 432285, 454020, 504780, 576380, 580497, 588910, 706692, 773996, 864570, 883365, 967495, 1160994, 1177820, 1354493, 1729140, 1766730, 1934990, 2321988, 2708986, 2902485, 3533460, 3869980, 4063479, 5417972, 5804970, 6772465, 8126958, 11609940, 13544930, 16253916, 20317395, 27089860, 40634790, 81269580]

約数ペア:

[(1, 81269580), (2, 40634790), (3, 27089860), (4, 20317395), (5, 16253916), (6, 13544930), (7, 11609940), (10, 8126958), (12, 6772465), (14, 5804970), (15, 5417972), (20, 4063479), (21, 3869980), (23, 3533460), (28, 2902485), (30, 2708986), (35, 2321988), (42, 1934990), (46, 1766730), (47, 1729140), (60, 1354493), (69, 1177820), (70, 1160994), (84, 967495), (92, 883365), (94, 864570), (105, 773996), (115, 706692), (138, 588910), (140, 580497), (141, 576380), (161, 504780), (179, 454020), (188, 432285), (210, 386998), (230, 353346), (235, 345828), (276, 294455), (282, 288190), (322, 252390), (329, 247020), (345, 235564), (358, 227010), (420, 193499), (460, 176673), (470, 172914), (483, 168260), (537, 151340), (564, 144095), (644, 126195), (658, 123510), (690, 117782), (705, 115276), (716, 113505), (805, 100956), (895, 90804), (940, 86457), (966, 84130), (987, 82340), (1074, 75670), (1081, 75180), (1253, 64860), (1316, 61755), (1380, 58891), (1410, 57638), (1610, 50478), (1645, 49404), (1790, 45402), (1932, 42065), (1974, 41170), (2148, 37835), (2162, 37590), (2415, 33652), (2506, 32430), (2685, 30268), (2820, 28819), (3220, 25239), (3243, 25060), (3290, 24702), (3580, 22701), (3759, 21620), (3948, 20585), (4117, 19740), (4324, 18795), (4830, 16826), (4935, 16468), (5012, 16215), (5370, 15134), (5405, 15036), (6265, 12972), (6486, 12530), (6580, 12351), (7518, 10810), (7567, 10740), (8234, 9870), (8413, 9660)]