20216918888

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{2179}}^1$

素因数の和:2514

約数の個数: 64

約数和(自身を含む): 39059496000

約数和(自身を除く): 18842577112

約数列:

[1, 2, 4, 8, 83, 89, 157, 166, 178, 314, 332, 356, 628, 664, 712, 1256, 2179, 4358, 7387, 8716, 13031, 13973, 14774, 17432, 26062, 27946, 29548, 52124, 55892, 59096, 104248, 111784, 180857, 193931, 342103, 361714, 387862, 684206, 723428, 775724, 1159759, 1368412, 1446856, 1551448, 2319518, 2736824, 4639036, 9278072, 16096273, 28394549, 30447167, 32192546, 56789098, 60894334, 64385092, 113578196, 121788668, 128770184, 227156392, 243577336, 2527114861, 5054229722, 10108459444, 20216918888]

約数ペア:

[(1, 20216918888), (2, 10108459444), (4, 5054229722), (8, 2527114861), (83, 243577336), (89, 227156392), (157, 128770184), (166, 121788668), (178, 113578196), (314, 64385092), (332, 60894334), (356, 56789098), (628, 32192546), (664, 30447167), (712, 28394549), (1256, 16096273), (2179, 9278072), (4358, 4639036), (7387, 2736824), (8716, 2319518), (13031, 1551448), (13973, 1446856), (14774, 1368412), (17432, 1159759), (26062, 775724), (27946, 723428), (29548, 684206), (52124, 387862), (55892, 361714), (59096, 342103), (104248, 193931), (111784, 180857)]