27720840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:623

約数の個数: 128

約数和(自身を含む): 96779520

約数和(自身を除く): 69058680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 541, 610, 732, 840, 854, 915, 1082, 1220, 1281, 1464, 1623, 1708, 1830, 2135, 2164, 2440, 2562, 2705, 3246, 3416, 3660, 3787, 4270, 4328, 5124, 5410, 6405, 6492, 7320, 7574, 8115, 8540, 10248, 10820, 11361, 12810, 12984, 15148, 16230, 17080, 18935, 21640, 22722, 25620, 30296, 32460, 33001, 37870, 45444, 51240, 56805, 64920, 66002, 75740, 90888, 99003, 113610, 132004, 151480, 165005, 198006, 227220, 231007, 264008, 330010, 396012, 454440, 462014, 495015, 660020, 693021, 792024, 924028, 990030, 1155035, 1320040, 1386042, 1848056, 1980060, 2310070, 2772084, 3465105, 3960120, 4620140, 5544168, 6930210, 9240280, 13860420, 27720840]

約数ペア:

[(1, 27720840), (2, 13860420), (3, 9240280), (4, 6930210), (5, 5544168), (6, 4620140), (7, 3960120), (8, 3465105), (10, 2772084), (12, 2310070), (14, 1980060), (15, 1848056), (20, 1386042), (21, 1320040), (24, 1155035), (28, 990030), (30, 924028), (35, 792024), (40, 693021), (42, 660020), (56, 495015), (60, 462014), (61, 454440), (70, 396012), (84, 330010), (105, 264008), (120, 231007), (122, 227220), (140, 198006), (168, 165005), (183, 151480), (210, 132004), (244, 113610), (280, 99003), (305, 90888), (366, 75740), (420, 66002), (427, 64920), (488, 56805), (541, 51240), (610, 45444), (732, 37870), (840, 33001), (854, 32460), (915, 30296), (1082, 25620), (1220, 22722), (1281, 21640), (1464, 18935), (1623, 17080), (1708, 16230), (1830, 15148), (2135, 12984), (2164, 12810), (2440, 11361), (2562, 10820), (2705, 10248), (3246, 8540), (3416, 8115), (3660, 7574), (3787, 7320), (4270, 6492), (4328, 6405), (5124, 5410)]