21863520

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{241}}^1$

素因数の和:275

約数の個数: 240

約数和(自身を含む): 88548768

約数和(自身を除く): 66685248

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 241, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 482, 504, 540, 560, 567, 630, 648, 672, 720, 723, 756, 810, 840, 864, 945, 964, 1008, 1080, 1120, 1134, 1205, 1260, 1296, 1440, 1446, 1512, 1620, 1680, 1687, 1890, 1928, 2016, 2160, 2169, 2268, 2410, 2520, 2592, 2835, 2892, 3024, 3240, 3360, 3374, 3615, 3780, 3856, 4320, 4338, 4536, 4820, 5040, 5061, 5670, 5784, 6048, 6480, 6507, 6748, 7230, 7560, 7712, 8435, 8676, 9072, 9640, 10080, 10122, 10845, 11340, 11568, 12960, 13014, 13496, 14460, 15120, 15183, 16870, 17352, 18144, 19280, 19521, 20244, 21690, 22680, 23136, 25305, 26028, 26992, 28920, 30240, 30366, 32535, 33740, 34704, 38560, 39042, 40488, 43380, 45360, 45549, 50610, 52056, 53984, 57840, 60732, 65070, 67480, 69408, 75915, 78084, 80976, 86760, 90720, 91098, 97605, 101220, 104112, 115680, 121464, 130140, 134960, 136647, 151830, 156168, 161952, 173520, 182196, 195210, 202440, 208224, 227745, 242928, 260280, 269920, 273294, 303660, 312336, 347040, 364392, 390420, 404880, 455490, 485856, 520560, 546588, 607320, 624672, 683235, 728784, 780840, 809760, 910980, 1041120, 1093176, 1214640, 1366470, 1457568, 1561680, 1821960, 2186352, 2429280, 2732940, 3123360, 3643920, 4372704, 5465880, 7287840, 10931760, 21863520]

約数ペア:

[(1, 21863520), (2, 10931760), (3, 7287840), (4, 5465880), (5, 4372704), (6, 3643920), (7, 3123360), (8, 2732940), (9, 2429280), (10, 2186352), (12, 1821960), (14, 1561680), (15, 1457568), (16, 1366470), (18, 1214640), (20, 1093176), (21, 1041120), (24, 910980), (27, 809760), (28, 780840), (30, 728784), (32, 683235), (35, 624672), (36, 607320), (40, 546588), (42, 520560), (45, 485856), (48, 455490), (54, 404880), (56, 390420), (60, 364392), (63, 347040), (70, 312336), (72, 303660), (80, 273294), (81, 269920), (84, 260280), (90, 242928), (96, 227745), (105, 208224), (108, 202440), (112, 195210), (120, 182196), (126, 173520), (135, 161952), (140, 156168), (144, 151830), (160, 136647), (162, 134960), (168, 130140), (180, 121464), (189, 115680), (210, 104112), (216, 101220), (224, 97605), (240, 91098), (241, 90720), (252, 86760), (270, 80976), (280, 78084), (288, 75915), (315, 69408), (324, 67480), (336, 65070), (360, 60732), (378, 57840), (405, 53984), (420, 52056), (432, 50610), (480, 45549), (482, 45360), (504, 43380), (540, 40488), (560, 39042), (567, 38560), (630, 34704), (648, 33740), (672, 32535), (720, 30366), (723, 30240), (756, 28920), (810, 26992), (840, 26028), (864, 25305), (945, 23136), (964, 22680), (1008, 21690), (1080, 20244), (1120, 19521), (1134, 19280), (1205, 18144), (1260, 17352), (1296, 16870), (1440, 15183), (1446, 15120), (1512, 14460), (1620, 13496), (1680, 13014), (1687, 12960), (1890, 11568), (1928, 11340), (2016, 10845), (2160, 10122), (2169, 10080), (2268, 9640), (2410, 9072), (2520, 8676), (2592, 8435), (2835, 7712), (2892, 7560), (3024, 7230), (3240, 6748), (3360, 6507), (3374, 6480), (3615, 6048), (3780, 5784), (3856, 5670), (4320, 5061), (4338, 5040), (4536, 4820)]