205124778

素因数分解:

$2^1\times 3^3\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 465315840

約数和(自身を除く): 260191062

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 107, 131, 214, 262, 271, 321, 393, 542, 642, 786, 813, 963, 1179, 1626, 1926, 2358, 2439, 2889, 3537, 4878, 5778, 7074, 7317, 14017, 14634, 28034, 28997, 35501, 42051, 57994, 71002, 84102, 86991, 106503, 126153, 173982, 213006, 252306, 260973, 319509, 378459, 521946, 639018, 756918, 782919, 958527, 1565838, 1917054, 3798607, 7597214, 11395821, 22791642, 34187463, 68374926, 102562389, 205124778]

約数ペア:

[(1, 205124778), (2, 102562389), (3, 68374926), (6, 34187463), (9, 22791642), (18, 11395821), (27, 7597214), (54, 3798607), (107, 1917054), (131, 1565838), (214, 958527), (262, 782919), (271, 756918), (321, 639018), (393, 521946), (542, 378459), (642, 319509), (786, 260973), (813, 252306), (963, 213006), (1179, 173982), (1626, 126153), (1926, 106503), (2358, 86991), (2439, 84102), (2889, 71002), (3537, 57994), (4878, 42051), (5778, 35501), (7074, 28997), (7317, 28034), (14017, 14634)]