640155744

素因数分解:

$2^5\times 3^3\times {\mathrm{29}}^2\times {\mathrm{881}}^1$

素因数の和:958

約数の個数: 144

約数和(自身を含む): 1935919440

約数和(自身を除く): 1295763696

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 32, 36, 48, 54, 58, 72, 87, 96, 108, 116, 144, 174, 216, 232, 261, 288, 348, 432, 464, 522, 696, 783, 841, 864, 881, 928, 1044, 1392, 1566, 1682, 1762, 2088, 2523, 2643, 2784, 3132, 3364, 3524, 4176, 5046, 5286, 6264, 6728, 7048, 7569, 7929, 8352, 10092, 10572, 12528, 13456, 14096, 15138, 15858, 20184, 21144, 22707, 23787, 25056, 25549, 26912, 28192, 30276, 31716, 40368, 42288, 45414, 47574, 51098, 60552, 63432, 76647, 80736, 84576, 90828, 95148, 102196, 121104, 126864, 153294, 181656, 190296, 204392, 229941, 242208, 253728, 306588, 363312, 380592, 408784, 459882, 613176, 689823, 726624, 740921, 761184, 817568, 919764, 1226352, 1379646, 1481842, 1839528, 2222763, 2452704, 2759292, 2963684, 3679056, 4445526, 5518584, 5927368, 6668289, 7358112, 8891052, 11037168, 11854736, 13336578, 17782104, 20004867, 22074336, 23709472, 26673156, 35564208, 40009734, 53346312, 71128416, 80019468, 106692624, 160038936, 213385248, 320077872, 640155744]

約数ペア:

[(1, 640155744), (2, 320077872), (3, 213385248), (4, 160038936), (6, 106692624), (8, 80019468), (9, 71128416), (12, 53346312), (16, 40009734), (18, 35564208), (24, 26673156), (27, 23709472), (29, 22074336), (32, 20004867), (36, 17782104), (48, 13336578), (54, 11854736), (58, 11037168), (72, 8891052), (87, 7358112), (96, 6668289), (108, 5927368), (116, 5518584), (144, 4445526), (174, 3679056), (216, 2963684), (232, 2759292), (261, 2452704), (288, 2222763), (348, 1839528), (432, 1481842), (464, 1379646), (522, 1226352), (696, 919764), (783, 817568), (841, 761184), (864, 740921), (881, 726624), (928, 689823), (1044, 613176), (1392, 459882), (1566, 408784), (1682, 380592), (1762, 363312), (2088, 306588), (2523, 253728), (2643, 242208), (2784, 229941), (3132, 204392), (3364, 190296), (3524, 181656), (4176, 153294), (5046, 126864), (5286, 121104), (6264, 102196), (6728, 95148), (7048, 90828), (7569, 84576), (7929, 80736), (8352, 76647), (10092, 63432), (10572, 60552), (12528, 51098), (13456, 47574), (14096, 45414), (15138, 42288), (15858, 40368), (20184, 31716), (21144, 30276), (22707, 28192), (23787, 26912), (25056, 25549)]