1721224904

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 3959685120

約数和(自身を除く): 2238460216

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 37, 56, 62, 74, 124, 127, 148, 211, 217, 248, 254, 259, 296, 422, 434, 508, 518, 844, 868, 889, 1016, 1036, 1147, 1477, 1688, 1736, 1778, 2072, 2294, 2954, 3556, 3937, 4588, 4699, 5908, 6541, 7112, 7807, 7874, 8029, 9176, 9398, 11816, 13082, 15614, 15748, 16058, 18796, 26164, 26797, 27559, 31228, 31496, 32116, 32893, 37592, 45787, 52328, 53594, 54649, 55118, 62456, 64232, 65786, 91574, 107188, 109298, 110236, 131572, 145669, 183148, 187579, 214376, 218596, 220472, 242017, 263144, 291338, 366296, 375158, 437192, 484034, 582676, 750316, 830707, 968068, 991489, 1019683, 1165352, 1500632, 1661414, 1694119, 1936136, 1982978, 2039366, 3322828, 3388238, 3965956, 4078732, 5814949, 6645656, 6776476, 6940423, 7931912, 8157464, 11629898, 13552952, 13880846, 23259796, 27761692, 30736159, 46519592, 55523384, 61472318, 122944636, 215153113, 245889272, 430306226, 860612452, 1721224904]

約数ペア:

[(1, 1721224904), (2, 860612452), (4, 430306226), (7, 245889272), (8, 215153113), (14, 122944636), (28, 61472318), (31, 55523384), (37, 46519592), (56, 30736159), (62, 27761692), (74, 23259796), (124, 13880846), (127, 13552952), (148, 11629898), (211, 8157464), (217, 7931912), (248, 6940423), (254, 6776476), (259, 6645656), (296, 5814949), (422, 4078732), (434, 3965956), (508, 3388238), (518, 3322828), (844, 2039366), (868, 1982978), (889, 1936136), (1016, 1694119), (1036, 1661414), (1147, 1500632), (1477, 1165352), (1688, 1019683), (1736, 991489), (1778, 968068), (2072, 830707), (2294, 750316), (2954, 582676), (3556, 484034), (3937, 437192), (4588, 375158), (4699, 366296), (5908, 291338), (6541, 263144), (7112, 242017), (7807, 220472), (7874, 218596), (8029, 214376), (9176, 187579), (9398, 183148), (11816, 145669), (13082, 131572), (15614, 110236), (15748, 109298), (16058, 107188), (18796, 91574), (26164, 65786), (26797, 64232), (27559, 62456), (31228, 55118), (31496, 54649), (32116, 53594), (32893, 52328), (37592, 45787)]