81647286.000000000

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1061}}^1$

素因数の和:1134

約数の個数: 240

約数和(自身を含む): 986079744

約数和(自身を除く): 734750064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 47, 48, 56, 60, 63, 70, 72, 80, 84, 90, 94, 105, 112, 120, 126, 140, 141, 144, 168, 180, 188, 210, 235, 240, 252, 280, 282, 315, 329, 336, 360, 376, 420, 423, 470, 504, 560, 564, 630, 658, 705, 720, 752, 840, 846, 940, 987, 1008, 1061, 1128, 1260, 1316, 1410, 1645, 1680, 1692, 1880, 1974, 2115, 2122, 2256, 2520, 2632, 2820, 2961, 3183, 3290, 3384, 3760, 3948, 4230, 4244, 4935, 5040, 5264, 5305, 5640, 5922, 6366, 6580, 6768, 7427, 7896, 8460, 8488, 9549, 9870, 10610, 11280, 11844, 12732, 13160, 14805, 14854, 15792, 15915, 16920, 16976, 19098, 19740, 21220, 22281, 23688, 25464, 26320, 29610, 29708, 31830, 33840, 37135, 38196, 39480, 42440, 44562, 47376, 47745, 49867, 50928, 59220, 59416, 63660, 66843, 74270, 76392, 78960, 84880, 89124, 95490, 99734, 111405, 118440, 118832, 127320, 133686, 148540, 149601, 152784, 178248, 190980, 199468, 222810, 236880, 249335, 254640, 267372, 297080, 299202, 334215, 349069, 356496, 381960, 398936, 445620, 448803, 498670, 534744, 594160, 598404, 668430, 698138, 748005, 763920, 797872, 891240, 897606, 997340, 1047207, 1069488, 1196808, 1336860, 1396276, 1496010, 1745345, 1782480, 1795212, 1994680, 2094414, 2244015, 2393616, 2673720, 2792552, 2992020, 3141621, 3490690, 3590424, 3989360, 4188828, 4488030, 5236035, 5347440, 5585104, 5984040, 6283242, 6981380, 7180848, 8377656, 8976060, 10472070, 11968080, 12566484, 13962760, 15708105, 16755312, 17952120, 20944140, 25132968, 27925520, 31416210, 35904240, 41888280, 50265936, 62832420, 83776560, 125664840, 251329680]

約数ペア:

[(1, 251329680), (2, 125664840), (3, 83776560), (4, 62832420), (5, 50265936), (6, 41888280), (7, 35904240), (8, 31416210), (9, 27925520), (10, 25132968), (12, 20944140), (14, 17952120), (15, 16755312), (16, 15708105), (18, 13962760), (20, 12566484), (21, 11968080), (24, 10472070), (28, 8976060), (30, 8377656), (35, 7180848), (36, 6981380), (40, 6283242), (42, 5984040), (45, 5585104), (47, 5347440), (48, 5236035), (56, 4488030), (60, 4188828), (63, 3989360), (70, 3590424), (72, 3490690), (80, 3141621), (84, 2992020), (90, 2792552), (94, 2673720), (105, 2393616), (112, 2244015), (120, 2094414), (126, 1994680), (140, 1795212), (141, 1782480), (144, 1745345), (168, 1496010), (180, 1396276), (188, 1336860), (210, 1196808), (235, 1069488), (240, 1047207), (252, 997340), (280, 897606), (282, 891240), (315, 797872), (329, 763920), (336, 748005), (360, 698138), (376, 668430), (420, 598404), (423, 594160), (470, 534744), (504, 498670), (560, 448803), (564, 445620), (630, 398936), (658, 381960), (705, 356496), (720, 349069), (752, 334215), (840, 299202), (846, 297080), (940, 267372), (987, 254640), (1008, 249335), (1061, 236880), (1128, 222810), (1260, 199468), (1316, 190980), (1410, 178248), (1645, 152784), (1680, 149601), (1692, 148540), (1880, 133686), (1974, 127320), (2115, 118832), (2122, 118440), (2256, 111405), (2520, 99734), (2632, 95490), (2820, 89124), (2961, 84880), (3183, 78960), (3290, 76392), (3384, 74270), (3760, 66843), (3948, 63660), (4230, 59416), (4244, 59220), (4935, 50928), (5040, 49867), (5264, 47745), (5305, 47376), (5640, 44562), (5922, 42440), (6366, 39480), (6580, 38196), (6768, 37135), (7427, 33840), (7896, 31830), (8460, 29708), (8488, 29610), (9549, 26320), (9870, 25464), (10610, 23688), (11280, 22281), (11844, 21220), (12732, 19740), (13160, 19098), (14805, 16976), (14854, 16920), (15792, 15915)]