261139788

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:574

約数の個数: 240

約数和(自身を含む): 891342144

約数和(自身を除く): 630202356

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 17, 18, 21, 26, 27, 28, 34, 36, 39, 42, 51, 52, 54, 63, 68, 78, 81, 84, 91, 102, 108, 117, 119, 126, 153, 156, 162, 182, 189, 204, 221, 234, 238, 252, 273, 306, 324, 351, 357, 364, 378, 442, 459, 468, 476, 521, 546, 567, 612, 663, 702, 714, 756, 819, 884, 918, 1042, 1053, 1071, 1092, 1134, 1326, 1377, 1404, 1428, 1547, 1563, 1638, 1836, 1989, 2084, 2106, 2142, 2268, 2457, 2652, 2754, 3094, 3126, 3213, 3276, 3647, 3978, 4212, 4284, 4641, 4689, 4914, 5508, 5967, 6188, 6252, 6426, 6773, 7294, 7371, 7956, 8857, 9282, 9378, 9639, 9828, 10941, 11934, 12852, 13546, 13923, 14067, 14588, 14742, 17714, 17901, 18564, 18756, 19278, 20319, 21882, 23868, 26571, 27092, 27846, 28134, 29484, 32823, 35428, 35802, 38556, 40638, 41769, 42201, 43764, 47411, 53142, 55692, 56268, 60957, 61999, 65646, 71604, 79713, 81276, 83538, 84402, 94822, 98469, 106284, 115141, 121914, 123998, 125307, 131292, 142233, 159426, 167076, 168804, 182871, 185997, 189644, 196938, 230282, 239139, 243828, 247996, 250614, 284466, 295407, 318852, 345423, 365742, 371994, 393876, 426699, 460564, 478278, 501228, 548613, 557991, 568932, 590814, 690846, 717417, 731484, 743988, 805987, 853398, 956556, 1036269, 1097226, 1115982, 1181628, 1280097, 1381692, 1434834, 1611974, 1673973, 1706796, 2072538, 2194452, 2231964, 2417961, 2560194, 2869668, 3108807, 3223948, 3347946, 3840291, 4145076, 4835922, 5021919, 5120388, 6217614, 6695892, 7253883, 7680582, 9326421, 9671844, 10043838, 12435228, 14507766, 15361164, 18652842, 20087676, 21761649, 29015532, 37305684, 43523298, 65284947, 87046596, 130569894, 261139788]

約数ペア:

[(1, 261139788), (2, 130569894), (3, 87046596), (4, 65284947), (6, 43523298), (7, 37305684), (9, 29015532), (12, 21761649), (13, 20087676), (14, 18652842), (17, 15361164), (18, 14507766), (21, 12435228), (26, 10043838), (27, 9671844), (28, 9326421), (34, 7680582), (36, 7253883), (39, 6695892), (42, 6217614), (51, 5120388), (52, 5021919), (54, 4835922), (63, 4145076), (68, 3840291), (78, 3347946), (81, 3223948), (84, 3108807), (91, 2869668), (102, 2560194), (108, 2417961), (117, 2231964), (119, 2194452), (126, 2072538), (153, 1706796), (156, 1673973), (162, 1611974), (182, 1434834), (189, 1381692), (204, 1280097), (221, 1181628), (234, 1115982), (238, 1097226), (252, 1036269), (273, 956556), (306, 853398), (324, 805987), (351, 743988), (357, 731484), (364, 717417), (378, 690846), (442, 590814), (459, 568932), (468, 557991), (476, 548613), (521, 501228), (546, 478278), (567, 460564), (612, 426699), (663, 393876), (702, 371994), (714, 365742), (756, 345423), (819, 318852), (884, 295407), (918, 284466), (1042, 250614), (1053, 247996), (1071, 243828), (1092, 239139), (1134, 230282), (1326, 196938), (1377, 189644), (1404, 185997), (1428, 182871), (1547, 168804), (1563, 167076), (1638, 159426), (1836, 142233), (1989, 131292), (2084, 125307), (2106, 123998), (2142, 121914), (2268, 115141), (2457, 106284), (2652, 98469), (2754, 94822), (3094, 84402), (3126, 83538), (3213, 81276), (3276, 79713), (3647, 71604), (3978, 65646), (4212, 61999), (4284, 60957), (4641, 56268), (4689, 55692), (4914, 53142), (5508, 47411), (5967, 43764), (6188, 42201), (6252, 41769), (6426, 40638), (6773, 38556), (7294, 35802), (7371, 35428), (7956, 32823), (8857, 29484), (9282, 28134), (9378, 27846), (9639, 27092), (9828, 26571), (10941, 23868), (11934, 21882), (12852, 20319), (13546, 19278), (13923, 18756), (14067, 18564), (14588, 17901), (14742, 17714)]