728615916

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:492

約数の個数: 144

約数和(自身を含む): 2155765248

約数和(自身を除く): 1427149332

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 71, 84, 126, 142, 193, 211, 213, 252, 284, 386, 422, 426, 497, 579, 633, 639, 772, 844, 852, 994, 1158, 1266, 1278, 1351, 1477, 1491, 1737, 1899, 1988, 2316, 2532, 2556, 2702, 2954, 2982, 3474, 3798, 4053, 4431, 4473, 5404, 5908, 5964, 6948, 7596, 8106, 8862, 8946, 12159, 13293, 13703, 14981, 16212, 17724, 17892, 24318, 26586, 27406, 29962, 40723, 41109, 44943, 48636, 53172, 54812, 59924, 81446, 82218, 89886, 95921, 104867, 122169, 123327, 134829, 162892, 164436, 179772, 191842, 209734, 244338, 246654, 269658, 285061, 287763, 314601, 366507, 383684, 419468, 488676, 493308, 539316, 570122, 575526, 629202, 733014, 855183, 863289, 943803, 1140244, 1151052, 1258404, 1466028, 1710366, 1726578, 1887606, 2565549, 2891333, 3420732, 3453156, 3775212, 5131098, 5782666, 8673999, 10262196, 11565332, 17347998, 20239331, 26021997, 34695996, 40478662, 52043994, 60717993, 80957324, 104087988, 121435986, 182153979, 242871972, 364307958, 728615916]

約数ペア:

[(1, 728615916), (2, 364307958), (3, 242871972), (4, 182153979), (6, 121435986), (7, 104087988), (9, 80957324), (12, 60717993), (14, 52043994), (18, 40478662), (21, 34695996), (28, 26021997), (36, 20239331), (42, 17347998), (63, 11565332), (71, 10262196), (84, 8673999), (126, 5782666), (142, 5131098), (193, 3775212), (211, 3453156), (213, 3420732), (252, 2891333), (284, 2565549), (386, 1887606), (422, 1726578), (426, 1710366), (497, 1466028), (579, 1258404), (633, 1151052), (639, 1140244), (772, 943803), (844, 863289), (852, 855183), (994, 733014), (1158, 629202), (1266, 575526), (1278, 570122), (1351, 539316), (1477, 493308), (1491, 488676), (1737, 419468), (1899, 383684), (1988, 366507), (2316, 314601), (2532, 287763), (2556, 285061), (2702, 269658), (2954, 246654), (2982, 244338), (3474, 209734), (3798, 191842), (4053, 179772), (4431, 164436), (4473, 162892), (5404, 134829), (5908, 123327), (5964, 122169), (6948, 104867), (7596, 95921), (8106, 89886), (8862, 82218), (8946, 81446), (12159, 59924), (13293, 54812), (13703, 53172), (14981, 48636), (16212, 44943), (17724, 41109), (17892, 40723), (24318, 29962), (26586, 27406)]