20828808

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:77

約数の個数: 288

約数和(自身を含む): 80458560

約数和(自身を除く): 59629752

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14, 17, 18, 21, 22, 24, 26, 28, 33, 34, 36, 39, 42, 44, 51, 52, 56, 63, 66, 68, 72, 77, 78, 84, 88, 91, 99, 102, 104, 117, 119, 126, 132, 136, 143, 153, 154, 156, 168, 182, 187, 198, 204, 221, 231, 234, 238, 252, 264, 273, 286, 289, 306, 308, 312, 357, 364, 374, 396, 408, 429, 442, 462, 468, 476, 504, 546, 561, 572, 578, 612, 616, 663, 693, 714, 728, 748, 792, 819, 858, 867, 884, 924, 936, 952, 1001, 1071, 1092, 1122, 1144, 1156, 1224, 1287, 1309, 1326, 1386, 1428, 1496, 1547, 1638, 1683, 1716, 1734, 1768, 1848, 1989, 2002, 2023, 2142, 2184, 2244, 2312, 2431, 2574, 2601, 2618, 2652, 2772, 2856, 3003, 3094, 3179, 3276, 3366, 3432, 3468, 3757, 3927, 3978, 4004, 4046, 4284, 4488, 4641, 4862, 5148, 5202, 5236, 5304, 5544, 6006, 6069, 6188, 6358, 6552, 6732, 6936, 7293, 7514, 7854, 7956, 8008, 8092, 8568, 9009, 9282, 9537, 9724, 10296, 10404, 10472, 11271, 11781, 12012, 12138, 12376, 12716, 13464, 13923, 14586, 15028, 15708, 15912, 16184, 17017, 18018, 18207, 18564, 19074, 19448, 20808, 21879, 22253, 22542, 23562, 24024, 24276, 25432, 26299, 27846, 28611, 29172, 30056, 31416, 33813, 34034, 36036, 36414, 37128, 38148, 41327, 43758, 44506, 45084, 47124, 48552, 51051, 52598, 55692, 57222, 58344, 66759, 67626, 68068, 72072, 72828, 76296, 78897, 82654, 87516, 89012, 90168, 94248, 102102, 105196, 111384, 114444, 123981, 133518, 135252, 136136, 145656, 153153, 157794, 165308, 175032, 178024, 200277, 204204, 210392, 228888, 236691, 247962, 267036, 270504, 289289, 306306, 315588, 330616, 371943, 400554, 408408, 473382, 495924, 534072, 578578, 612612, 631176, 743886, 801108, 867867, 946764, 991848, 1157156, 1225224, 1487772, 1602216, 1735734, 1893528, 2314312, 2603601, 2975544, 3471468, 5207202, 6942936, 10414404, 20828808]

約数ペア:

[(1, 20828808), (2, 10414404), (3, 6942936), (4, 5207202), (6, 3471468), (7, 2975544), (8, 2603601), (9, 2314312), (11, 1893528), (12, 1735734), (13, 1602216), (14, 1487772), (17, 1225224), (18, 1157156), (21, 991848), (22, 946764), (24, 867867), (26, 801108), (28, 743886), (33, 631176), (34, 612612), (36, 578578), (39, 534072), (42, 495924), (44, 473382), (51, 408408), (52, 400554), (56, 371943), (63, 330616), (66, 315588), (68, 306306), (72, 289289), (77, 270504), (78, 267036), (84, 247962), (88, 236691), (91, 228888), (99, 210392), (102, 204204), (104, 200277), (117, 178024), (119, 175032), (126, 165308), (132, 157794), (136, 153153), (143, 145656), (153, 136136), (154, 135252), (156, 133518), (168, 123981), (182, 114444), (187, 111384), (198, 105196), (204, 102102), (221, 94248), (231, 90168), (234, 89012), (238, 87516), (252, 82654), (264, 78897), (273, 76296), (286, 72828), (289, 72072), (306, 68068), (308, 67626), (312, 66759), (357, 58344), (364, 57222), (374, 55692), (396, 52598), (408, 51051), (429, 48552), (442, 47124), (462, 45084), (468, 44506), (476, 43758), (504, 41327), (546, 38148), (561, 37128), (572, 36414), (578, 36036), (612, 34034), (616, 33813), (663, 31416), (693, 30056), (714, 29172), (728, 28611), (748, 27846), (792, 26299), (819, 25432), (858, 24276), (867, 24024), (884, 23562), (924, 22542), (936, 22253), (952, 21879), (1001, 20808), (1071, 19448), (1092, 19074), (1122, 18564), (1144, 18207), (1156, 18018), (1224, 17017), (1287, 16184), (1309, 15912), (1326, 15708), (1386, 15028), (1428, 14586), (1496, 13923), (1547, 13464), (1638, 12716), (1683, 12376), (1716, 12138), (1734, 12012), (1768, 11781), (1848, 11271), (1989, 10472), (2002, 10404), (2023, 10296), (2142, 9724), (2184, 9537), (2244, 9282), (2312, 9009), (2431, 8568), (2574, 8092), (2601, 8008), (2618, 7956), (2652, 7854), (2772, 7514), (2856, 7293), (3003, 6936), (3094, 6732), (3179, 6552), (3276, 6358), (3366, 6188), (3432, 6069), (3468, 6006), (3757, 5544), (3927, 5304), (3978, 5236), (4004, 5202), (4046, 5148), (4284, 4862), (4488, 4641)]