281991996

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:118

約数の個数: 288

約数和(自身を含む): 934214400

約数和(自身を除く): 652222404

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 19, 22, 26, 27, 31, 33, 36, 38, 39, 44, 52, 54, 57, 62, 66, 76, 78, 93, 99, 108, 114, 117, 124, 132, 143, 156, 171, 186, 198, 209, 228, 234, 247, 279, 286, 297, 341, 342, 351, 372, 396, 403, 418, 429, 468, 494, 513, 558, 572, 589, 594, 627, 682, 684, 702, 741, 806, 836, 837, 858, 961, 988, 1023, 1026, 1116, 1178, 1188, 1209, 1254, 1287, 1364, 1404, 1482, 1612, 1674, 1716, 1767, 1881, 1922, 2046, 2052, 2223, 2356, 2418, 2508, 2574, 2717, 2883, 2964, 3069, 3348, 3534, 3627, 3762, 3844, 3861, 4092, 4433, 4446, 4836, 5148, 5301, 5434, 5643, 5766, 6138, 6479, 6669, 7068, 7254, 7524, 7657, 7722, 8151, 8649, 8866, 8892, 9207, 10571, 10602, 10868, 10881, 11286, 11532, 12276, 12493, 12958, 13299, 13338, 14508, 15314, 15444, 15903, 16302, 17298, 17732, 18259, 18414, 19437, 21142, 21204, 21762, 22572, 22971, 24453, 24986, 25916, 25947, 26598, 26676, 30628, 31713, 31806, 32604, 34596, 36518, 36828, 37479, 38874, 39897, 42284, 43524, 45942, 48906, 49972, 51894, 53196, 54777, 58311, 63426, 63612, 68913, 73036, 73359, 74958, 77748, 79794, 84227, 91884, 95139, 97812, 103788, 109554, 112437, 116622, 119691, 126852, 137423, 137826, 146718, 149916, 159588, 164331, 168454, 174933, 190278, 200849, 206739, 219108, 224874, 233244, 237367, 239382, 252681, 274846, 275652, 285417, 293436, 328662, 336908, 337311, 349866, 380556, 401698, 412269, 413478, 449748, 474734, 478764, 492993, 505362, 549692, 570834, 602547, 657324, 674622, 699732, 712101, 758043, 803396, 824538, 826956, 949468, 985986, 1010724, 1141668, 1205094, 1236807, 1349244, 1424202, 1516086, 1649076, 1807641, 1971972, 2136303, 2274129, 2410188, 2473614, 2611037, 2848404, 3032172, 3615282, 3710421, 4272606, 4548258, 4947228, 5222074, 5422923, 6408909, 7230564, 7420842, 7833111, 8545212, 9096516, 10444148, 10845846, 12817818, 14841684, 15666222, 21691692, 23499333, 25635636, 31332444, 46998666, 70497999, 93997332, 140995998, 281991996]

約数ペア:

[(1, 281991996), (2, 140995998), (3, 93997332), (4, 70497999), (6, 46998666), (9, 31332444), (11, 25635636), (12, 23499333), (13, 21691692), (18, 15666222), (19, 14841684), (22, 12817818), (26, 10845846), (27, 10444148), (31, 9096516), (33, 8545212), (36, 7833111), (38, 7420842), (39, 7230564), (44, 6408909), (52, 5422923), (54, 5222074), (57, 4947228), (62, 4548258), (66, 4272606), (76, 3710421), (78, 3615282), (93, 3032172), (99, 2848404), (108, 2611037), (114, 2473614), (117, 2410188), (124, 2274129), (132, 2136303), (143, 1971972), (156, 1807641), (171, 1649076), (186, 1516086), (198, 1424202), (209, 1349244), (228, 1236807), (234, 1205094), (247, 1141668), (279, 1010724), (286, 985986), (297, 949468), (341, 826956), (342, 824538), (351, 803396), (372, 758043), (396, 712101), (403, 699732), (418, 674622), (429, 657324), (468, 602547), (494, 570834), (513, 549692), (558, 505362), (572, 492993), (589, 478764), (594, 474734), (627, 449748), (682, 413478), (684, 412269), (702, 401698), (741, 380556), (806, 349866), (836, 337311), (837, 336908), (858, 328662), (961, 293436), (988, 285417), (1023, 275652), (1026, 274846), (1116, 252681), (1178, 239382), (1188, 237367), (1209, 233244), (1254, 224874), (1287, 219108), (1364, 206739), (1404, 200849), (1482, 190278), (1612, 174933), (1674, 168454), (1716, 164331), (1767, 159588), (1881, 149916), (1922, 146718), (2046, 137826), (2052, 137423), (2223, 126852), (2356, 119691), (2418, 116622), (2508, 112437), (2574, 109554), (2717, 103788), (2883, 97812), (2964, 95139), (3069, 91884), (3348, 84227), (3534, 79794), (3627, 77748), (3762, 74958), (3844, 73359), (3861, 73036), (4092, 68913), (4433, 63612), (4446, 63426), (4836, 58311), (5148, 54777), (5301, 53196), (5434, 51894), (5643, 49972), (5766, 48906), (6138, 45942), (6479, 43524), (6669, 42284), (7068, 39897), (7254, 38874), (7524, 37479), (7657, 36828), (7722, 36518), (8151, 34596), (8649, 32604), (8866, 31806), (8892, 31713), (9207, 30628), (10571, 26676), (10602, 26598), (10868, 25947), (10881, 25916), (11286, 24986), (11532, 24453), (12276, 22971), (12493, 22572), (12958, 21762), (13299, 21204), (13338, 21142), (14508, 19437), (15314, 18414), (15444, 18259), (15903, 17732), (16302, 17298)]