256236470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:238

約数の個数: 128

約数和(自身を含む): 588349440

約数和(自身を除く): 332112970

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 37, 38, 41, 70, 74, 82, 95, 127, 133, 185, 190, 205, 254, 259, 266, 287, 370, 410, 518, 574, 635, 665, 703, 779, 889, 1270, 1295, 1330, 1406, 1435, 1517, 1558, 1778, 2413, 2590, 2870, 3034, 3515, 3895, 4445, 4699, 4826, 4921, 5207, 5453, 7030, 7585, 7790, 8890, 9398, 9842, 10414, 10619, 10906, 12065, 15170, 16891, 21238, 23495, 24130, 24605, 26035, 27265, 28823, 32893, 33782, 36449, 46990, 49210, 52070, 53095, 54530, 57646, 65786, 72898, 84455, 89281, 98933, 106190, 144115, 164465, 168910, 178562, 182245, 192659, 197866, 201761, 288230, 328930, 364490, 385318, 403522, 446405, 494665, 624967, 692531, 892810, 963295, 989330, 1008805, 1249934, 1348613, 1385062, 1926590, 2017610, 2697226, 3124835, 3462655, 3660521, 6249670, 6743065, 6925310, 7321042, 13486130, 18302605, 25623647, 36605210, 51247294, 128118235, 256236470]

約数ペア:

[(1, 256236470), (2, 128118235), (5, 51247294), (7, 36605210), (10, 25623647), (14, 18302605), (19, 13486130), (35, 7321042), (37, 6925310), (38, 6743065), (41, 6249670), (70, 3660521), (74, 3462655), (82, 3124835), (95, 2697226), (127, 2017610), (133, 1926590), (185, 1385062), (190, 1348613), (205, 1249934), (254, 1008805), (259, 989330), (266, 963295), (287, 892810), (370, 692531), (410, 624967), (518, 494665), (574, 446405), (635, 403522), (665, 385318), (703, 364490), (779, 328930), (889, 288230), (1270, 201761), (1295, 197866), (1330, 192659), (1406, 182245), (1435, 178562), (1517, 168910), (1558, 164465), (1778, 144115), (2413, 106190), (2590, 98933), (2870, 89281), (3034, 84455), (3515, 72898), (3895, 65786), (4445, 57646), (4699, 54530), (4826, 53095), (4921, 52070), (5207, 49210), (5453, 46990), (7030, 36449), (7585, 33782), (7790, 32893), (8890, 28823), (9398, 27265), (9842, 26035), (10414, 24605), (10619, 24130), (10906, 23495), (12065, 21238), (15170, 16891)]