640065426

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:205

約数の個数: 256

約数和(自身を含む): 1857945600

約数和(自身を除く): 1217880174

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 19, 21, 22, 26, 33, 38, 39, 42, 57, 66, 71, 77, 78, 79, 91, 114, 133, 142, 143, 154, 158, 182, 209, 213, 231, 237, 247, 266, 273, 286, 399, 418, 426, 429, 462, 474, 494, 497, 546, 553, 627, 741, 781, 798, 858, 869, 923, 994, 1001, 1027, 1106, 1254, 1349, 1463, 1482, 1491, 1501, 1562, 1659, 1729, 1738, 1846, 2002, 2054, 2343, 2607, 2698, 2717, 2769, 2926, 2982, 3002, 3003, 3081, 3318, 3458, 4047, 4389, 4503, 4686, 5187, 5214, 5434, 5467, 5538, 5609, 6006, 6083, 6162, 6461, 7189, 8094, 8151, 8778, 9006, 9443, 10153, 10374, 10507, 10934, 11218, 11297, 12166, 12922, 14378, 14839, 16302, 16401, 16511, 16827, 17537, 18249, 18886, 19019, 19383, 19513, 20306, 21014, 21567, 22594, 28329, 29678, 30459, 31521, 32802, 33022, 33654, 33891, 35074, 36498, 38038, 38766, 39026, 39263, 43134, 44517, 49533, 52611, 56658, 57057, 58539, 60918, 61699, 63042, 67782, 71071, 72917, 78526, 79079, 89034, 99066, 103873, 105222, 106571, 114114, 115577, 117078, 117789, 122759, 123398, 136591, 142142, 145834, 158158, 185097, 192907, 207746, 213142, 213213, 214643, 218751, 231154, 235578, 237237, 245518, 273182, 311619, 319713, 346731, 368277, 370194, 385814, 409773, 426426, 429286, 431893, 437502, 474474, 510419, 578721, 623238, 639426, 643929, 693462, 736554, 745997, 802087, 819546, 863786, 1020838, 1157442, 1172281, 1287858, 1295679, 1350349, 1385423, 1491994, 1502501, 1531257, 1604174, 2237991, 2344562, 2406261, 2591358, 2700698, 2770846, 3005002, 3062514, 3516843, 4051047, 4156269, 4475982, 4507503, 4812522, 5614609, 7033686, 8102094, 8205967, 8312538, 9015006, 9697961, 11229218, 15239653, 16411934, 16843827, 19395922, 24617901, 29093883, 30479306, 33687654, 45718959, 49235802, 58187766, 91437918, 106677571, 213355142, 320032713, 640065426]

約数ペア:

[(1, 640065426), (2, 320032713), (3, 213355142), (6, 106677571), (7, 91437918), (11, 58187766), (13, 49235802), (14, 45718959), (19, 33687654), (21, 30479306), (22, 29093883), (26, 24617901), (33, 19395922), (38, 16843827), (39, 16411934), (42, 15239653), (57, 11229218), (66, 9697961), (71, 9015006), (77, 8312538), (78, 8205967), (79, 8102094), (91, 7033686), (114, 5614609), (133, 4812522), (142, 4507503), (143, 4475982), (154, 4156269), (158, 4051047), (182, 3516843), (209, 3062514), (213, 3005002), (231, 2770846), (237, 2700698), (247, 2591358), (266, 2406261), (273, 2344562), (286, 2237991), (399, 1604174), (418, 1531257), (426, 1502501), (429, 1491994), (462, 1385423), (474, 1350349), (494, 1295679), (497, 1287858), (546, 1172281), (553, 1157442), (627, 1020838), (741, 863786), (781, 819546), (798, 802087), (858, 745997), (869, 736554), (923, 693462), (994, 643929), (1001, 639426), (1027, 623238), (1106, 578721), (1254, 510419), (1349, 474474), (1463, 437502), (1482, 431893), (1491, 429286), (1501, 426426), (1562, 409773), (1659, 385814), (1729, 370194), (1738, 368277), (1846, 346731), (2002, 319713), (2054, 311619), (2343, 273182), (2607, 245518), (2698, 237237), (2717, 235578), (2769, 231154), (2926, 218751), (2982, 214643), (3002, 213213), (3003, 213142), (3081, 207746), (3318, 192907), (3458, 185097), (4047, 158158), (4389, 145834), (4503, 142142), (4686, 136591), (5187, 123398), (5214, 122759), (5434, 117789), (5467, 117078), (5538, 115577), (5609, 114114), (6006, 106571), (6083, 105222), (6162, 103873), (6461, 99066), (7189, 89034), (8094, 79079), (8151, 78526), (8778, 72917), (9006, 71071), (9443, 67782), (10153, 63042), (10374, 61699), (10507, 60918), (10934, 58539), (11218, 57057), (11297, 56658), (12166, 52611), (12922, 49533), (14378, 44517), (14839, 43134), (16302, 39263), (16401, 39026), (16511, 38766), (16827, 38038), (17537, 36498), (18249, 35074), (18886, 33891), (19019, 33654), (19383, 33022), (19513, 32802), (20306, 31521), (21014, 30459), (21567, 29678), (22594, 28329)]