18838680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{547}}^1$

素因数の和:609

約数の個数: 128

約数和(自身を含む): 66286080

約数和(自身を除く): 47447400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 82, 84, 105, 120, 123, 140, 164, 168, 205, 210, 246, 280, 287, 328, 410, 420, 492, 547, 574, 615, 820, 840, 861, 984, 1094, 1148, 1230, 1435, 1640, 1641, 1722, 2188, 2296, 2460, 2735, 2870, 3282, 3444, 3829, 4305, 4376, 4920, 5470, 5740, 6564, 6888, 7658, 8205, 8610, 10940, 11480, 11487, 13128, 15316, 16410, 17220, 19145, 21880, 22427, 22974, 30632, 32820, 34440, 38290, 44854, 45948, 57435, 65640, 67281, 76580, 89708, 91896, 112135, 114870, 134562, 153160, 156989, 179416, 224270, 229740, 269124, 313978, 336405, 448540, 459480, 470967, 538248, 627956, 672810, 784945, 897080, 941934, 1255912, 1345620, 1569890, 1883868, 2354835, 2691240, 3139780, 3767736, 4709670, 6279560, 9419340, 18838680]

約数ペア:

[(1, 18838680), (2, 9419340), (3, 6279560), (4, 4709670), (5, 3767736), (6, 3139780), (7, 2691240), (8, 2354835), (10, 1883868), (12, 1569890), (14, 1345620), (15, 1255912), (20, 941934), (21, 897080), (24, 784945), (28, 672810), (30, 627956), (35, 538248), (40, 470967), (41, 459480), (42, 448540), (56, 336405), (60, 313978), (70, 269124), (82, 229740), (84, 224270), (105, 179416), (120, 156989), (123, 153160), (140, 134562), (164, 114870), (168, 112135), (205, 91896), (210, 89708), (246, 76580), (280, 67281), (287, 65640), (328, 57435), (410, 45948), (420, 44854), (492, 38290), (547, 34440), (574, 32820), (615, 30632), (820, 22974), (840, 22427), (861, 21880), (984, 19145), (1094, 17220), (1148, 16410), (1230, 15316), (1435, 13128), (1640, 11487), (1641, 11480), (1722, 10940), (2188, 8610), (2296, 8205), (2460, 7658), (2735, 6888), (2870, 6564), (3282, 5740), (3444, 5470), (3829, 4920), (4305, 4376)]