217739988

素因数分解:

$2^2\times 3^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:579

約数の個数: 120

約数和(自身を含む): 604961280

約数和(自身を除く): 387221292

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 61, 69, 81, 92, 108, 122, 138, 162, 183, 207, 244, 276, 324, 366, 414, 479, 549, 621, 732, 828, 958, 1098, 1242, 1403, 1437, 1647, 1863, 1916, 2196, 2484, 2806, 2874, 3294, 3726, 4209, 4311, 4941, 5612, 5748, 6588, 7452, 8418, 8622, 9882, 11017, 12627, 12933, 16836, 17244, 19764, 22034, 25254, 25866, 29219, 33051, 37881, 38799, 44068, 50508, 51732, 58438, 66102, 75762, 77598, 87657, 99153, 113643, 116876, 132204, 151524, 155196, 175314, 198306, 227286, 262971, 297459, 350628, 396612, 454572, 525942, 594918, 672037, 788913, 892377, 1051884, 1189836, 1344074, 1577826, 1784754, 2016111, 2366739, 2688148, 3155652, 3569508, 4032222, 4733478, 6048333, 8064444, 9466956, 12096666, 18144999, 24193332, 36289998, 54434997, 72579996, 108869994, 217739988]

約数ペア:

[(1, 217739988), (2, 108869994), (3, 72579996), (4, 54434997), (6, 36289998), (9, 24193332), (12, 18144999), (18, 12096666), (23, 9466956), (27, 8064444), (36, 6048333), (46, 4733478), (54, 4032222), (61, 3569508), (69, 3155652), (81, 2688148), (92, 2366739), (108, 2016111), (122, 1784754), (138, 1577826), (162, 1344074), (183, 1189836), (207, 1051884), (244, 892377), (276, 788913), (324, 672037), (366, 594918), (414, 525942), (479, 454572), (549, 396612), (621, 350628), (732, 297459), (828, 262971), (958, 227286), (1098, 198306), (1242, 175314), (1403, 155196), (1437, 151524), (1647, 132204), (1863, 116876), (1916, 113643), (2196, 99153), (2484, 87657), (2806, 77598), (2874, 75762), (3294, 66102), (3726, 58438), (4209, 51732), (4311, 50508), (4941, 44068), (5612, 38799), (5748, 37881), (6588, 33051), (7452, 29219), (8418, 25866), (8622, 25254), (9882, 22034), (11017, 19764), (12627, 17244), (12933, 16836)]