399858394

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 707888160

約数和(自身を除く): 308029766

約数列:

[1, 2, 13, 17, 26, 34, 53, 101, 106, 169, 202, 221, 338, 442, 689, 901, 1313, 1378, 1717, 1802, 2197, 2626, 2873, 3434, 4394, 5353, 5746, 8957, 10706, 11713, 17069, 17914, 22321, 23426, 34138, 37349, 44642, 69589, 74698, 91001, 116441, 139178, 152269, 182002, 221897, 232882, 290173, 304538, 443794, 580346, 904657, 1183013, 1809314, 1979497, 2366026, 3772249, 3958994, 7544498, 11760541, 15379169, 23521082, 30758338, 199929197, 399858394]

約数ペア:

[(1, 399858394), (2, 199929197), (13, 30758338), (17, 23521082), (26, 15379169), (34, 11760541), (53, 7544498), (101, 3958994), (106, 3772249), (169, 2366026), (202, 1979497), (221, 1809314), (338, 1183013), (442, 904657), (689, 580346), (901, 443794), (1313, 304538), (1378, 290173), (1717, 232882), (1802, 221897), (2197, 182002), (2626, 152269), (2873, 139178), (3434, 116441), (4394, 91001), (5353, 74698), (5746, 69589), (8957, 44642), (10706, 37349), (11713, 34138), (17069, 23426), (17914, 22321)]