257503428

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:256

約数の個数: 288

約数和(自身を含む): 884822400

約数和(自身を除く): 627318972

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 19, 21, 26, 27, 28, 36, 38, 39, 42, 49, 52, 54, 57, 63, 76, 78, 84, 91, 98, 108, 114, 117, 126, 133, 147, 156, 171, 182, 189, 196, 197, 228, 234, 247, 252, 266, 273, 294, 342, 351, 364, 378, 394, 399, 441, 468, 494, 513, 532, 546, 588, 591, 637, 684, 702, 741, 756, 788, 798, 819, 882, 931, 988, 1026, 1092, 1182, 1197, 1274, 1323, 1379, 1404, 1482, 1596, 1638, 1729, 1764, 1773, 1862, 1911, 2052, 2223, 2364, 2394, 2457, 2548, 2561, 2646, 2758, 2793, 2964, 3276, 3458, 3546, 3591, 3724, 3743, 3822, 4137, 4446, 4788, 4914, 5122, 5187, 5292, 5319, 5516, 5586, 5733, 6669, 6916, 7092, 7182, 7486, 7644, 7683, 8274, 8379, 8892, 9653, 9828, 10244, 10374, 10638, 11172, 11229, 11466, 12103, 12411, 13338, 14364, 14972, 15366, 15561, 16548, 16758, 17199, 17927, 19306, 20748, 21276, 22458, 22932, 23049, 24206, 24822, 25137, 26201, 26676, 28959, 30732, 31122, 33516, 33687, 34398, 35854, 36309, 37233, 38612, 44916, 46098, 46683, 48412, 48659, 49644, 50274, 52402, 53781, 57918, 62244, 67374, 68796, 69147, 71708, 72618, 74466, 78603, 86877, 92196, 93366, 97318, 100548, 101061, 104804, 107562, 108927, 115836, 125489, 134748, 138294, 145236, 145977, 148932, 157206, 161343, 173754, 183407, 186732, 194636, 202122, 215124, 217854, 235809, 250978, 260631, 276588, 291954, 314412, 322686, 326781, 340613, 347508, 366814, 376467, 404244, 435708, 437931, 471618, 484029, 501956, 521262, 550221, 583908, 645372, 653562, 681226, 707427, 733628, 752934, 875862, 943236, 968058, 1021839, 1042524, 1100442, 1129401, 1307124, 1313793, 1362452, 1414854, 1505868, 1650663, 1751724, 1936116, 2043678, 2200884, 2258802, 2384291, 2627586, 2829708, 3065517, 3301326, 3388203, 4087356, 4517604, 4768582, 4951989, 5255172, 6131034, 6602652, 6776406, 7152873, 9196551, 9537164, 9903978, 12262068, 13552812, 14305746, 18393102, 19807956, 21458619, 28611492, 36786204, 42917238, 64375857, 85834476, 128751714, 257503428]

約数ペア:

[(1, 257503428), (2, 128751714), (3, 85834476), (4, 64375857), (6, 42917238), (7, 36786204), (9, 28611492), (12, 21458619), (13, 19807956), (14, 18393102), (18, 14305746), (19, 13552812), (21, 12262068), (26, 9903978), (27, 9537164), (28, 9196551), (36, 7152873), (38, 6776406), (39, 6602652), (42, 6131034), (49, 5255172), (52, 4951989), (54, 4768582), (57, 4517604), (63, 4087356), (76, 3388203), (78, 3301326), (84, 3065517), (91, 2829708), (98, 2627586), (108, 2384291), (114, 2258802), (117, 2200884), (126, 2043678), (133, 1936116), (147, 1751724), (156, 1650663), (171, 1505868), (182, 1414854), (189, 1362452), (196, 1313793), (197, 1307124), (228, 1129401), (234, 1100442), (247, 1042524), (252, 1021839), (266, 968058), (273, 943236), (294, 875862), (342, 752934), (351, 733628), (364, 707427), (378, 681226), (394, 653562), (399, 645372), (441, 583908), (468, 550221), (494, 521262), (513, 501956), (532, 484029), (546, 471618), (588, 437931), (591, 435708), (637, 404244), (684, 376467), (702, 366814), (741, 347508), (756, 340613), (788, 326781), (798, 322686), (819, 314412), (882, 291954), (931, 276588), (988, 260631), (1026, 250978), (1092, 235809), (1182, 217854), (1197, 215124), (1274, 202122), (1323, 194636), (1379, 186732), (1404, 183407), (1482, 173754), (1596, 161343), (1638, 157206), (1729, 148932), (1764, 145977), (1773, 145236), (1862, 138294), (1911, 134748), (2052, 125489), (2223, 115836), (2364, 108927), (2394, 107562), (2457, 104804), (2548, 101061), (2561, 100548), (2646, 97318), (2758, 93366), (2793, 92196), (2964, 86877), (3276, 78603), (3458, 74466), (3546, 72618), (3591, 71708), (3724, 69147), (3743, 68796), (3822, 67374), (4137, 62244), (4446, 57918), (4788, 53781), (4914, 52402), (5122, 50274), (5187, 49644), (5292, 48659), (5319, 48412), (5516, 46683), (5586, 46098), (5733, 44916), (6669, 38612), (6916, 37233), (7092, 36309), (7182, 35854), (7486, 34398), (7644, 33687), (7683, 33516), (8274, 31122), (8379, 30732), (8892, 28959), (9653, 26676), (9828, 26201), (10244, 25137), (10374, 24822), (10638, 24206), (11172, 23049), (11229, 22932), (11466, 22458), (12103, 21276), (12411, 20748), (13338, 19306), (14364, 17927), (14972, 17199), (15366, 16758), (15561, 16548)]