257298444

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:206

約数の個数: 180

約数和(自身を含む): 753924864

約数和(自身を除く): 496626420

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 37, 39, 52, 54, 74, 78, 81, 108, 111, 117, 127, 148, 156, 162, 169, 222, 234, 254, 324, 333, 338, 351, 381, 444, 468, 481, 507, 508, 666, 676, 702, 762, 962, 999, 1014, 1053, 1143, 1332, 1404, 1443, 1521, 1524, 1651, 1924, 1998, 2028, 2106, 2286, 2886, 2997, 3042, 3302, 3429, 3996, 4212, 4329, 4563, 4572, 4699, 4953, 5772, 5994, 6084, 6253, 6604, 6858, 8658, 9126, 9398, 9906, 10287, 11988, 12506, 12987, 13689, 13716, 14097, 14859, 17316, 18252, 18759, 18796, 19812, 20574, 21463, 25012, 25974, 27378, 28194, 29718, 37518, 38961, 41148, 42291, 42926, 44577, 51948, 54756, 56277, 56388, 59436, 61087, 64389, 75036, 77922, 84582, 85852, 89154, 112554, 122174, 126873, 128778, 133731, 155844, 168831, 169164, 178308, 183261, 193167, 225108, 244348, 253746, 257556, 267462, 337662, 366522, 380619, 386334, 506493, 507492, 534924, 549783, 579501, 675324, 733044, 761238, 772668, 794131, 1012986, 1099566, 1159002, 1522476, 1588262, 1649349, 1738503, 2025972, 2199132, 2318004, 2382393, 3176524, 3298698, 3477006, 4764786, 4948047, 6597396, 6954012, 7147179, 9529572, 9896094, 14294358, 19792188, 21441537, 28588716, 42883074, 64324611, 85766148, 128649222, 257298444]

約数ペア:

[(1, 257298444), (2, 128649222), (3, 85766148), (4, 64324611), (6, 42883074), (9, 28588716), (12, 21441537), (13, 19792188), (18, 14294358), (26, 9896094), (27, 9529572), (36, 7147179), (37, 6954012), (39, 6597396), (52, 4948047), (54, 4764786), (74, 3477006), (78, 3298698), (81, 3176524), (108, 2382393), (111, 2318004), (117, 2199132), (127, 2025972), (148, 1738503), (156, 1649349), (162, 1588262), (169, 1522476), (222, 1159002), (234, 1099566), (254, 1012986), (324, 794131), (333, 772668), (338, 761238), (351, 733044), (381, 675324), (444, 579501), (468, 549783), (481, 534924), (507, 507492), (508, 506493), (666, 386334), (676, 380619), (702, 366522), (762, 337662), (962, 267462), (999, 257556), (1014, 253746), (1053, 244348), (1143, 225108), (1332, 193167), (1404, 183261), (1443, 178308), (1521, 169164), (1524, 168831), (1651, 155844), (1924, 133731), (1998, 128778), (2028, 126873), (2106, 122174), (2286, 112554), (2886, 89154), (2997, 85852), (3042, 84582), (3302, 77922), (3429, 75036), (3996, 64389), (4212, 61087), (4329, 59436), (4563, 56388), (4572, 56277), (4699, 54756), (4953, 51948), (5772, 44577), (5994, 42926), (6084, 42291), (6253, 41148), (6604, 38961), (6858, 37518), (8658, 29718), (9126, 28194), (9398, 27378), (9906, 25974), (10287, 25012), (11988, 21463), (12506, 20574), (12987, 19812), (13689, 18796), (13716, 18759), (14097, 18252), (14859, 17316)]