28923880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 68688000

約数和(自身を除く): 39764120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 149, 184, 211, 230, 298, 422, 460, 596, 745, 844, 920, 1055, 1192, 1490, 1688, 2110, 2980, 3427, 4220, 4853, 5960, 6854, 8440, 9706, 13708, 17135, 19412, 24265, 27416, 31439, 34270, 38824, 48530, 62878, 68540, 97060, 125756, 137080, 157195, 194120, 251512, 314390, 628780, 723097, 1257560, 1446194, 2892388, 3615485, 5784776, 7230970, 14461940, 28923880]

約数ペア:

[(1, 28923880), (2, 14461940), (4, 7230970), (5, 5784776), (8, 3615485), (10, 2892388), (20, 1446194), (23, 1257560), (40, 723097), (46, 628780), (92, 314390), (115, 251512), (149, 194120), (184, 157195), (211, 137080), (230, 125756), (298, 97060), (422, 68540), (460, 62878), (596, 48530), (745, 38824), (844, 34270), (920, 31439), (1055, 27416), (1192, 24265), (1490, 19412), (1688, 17135), (2110, 13708), (2980, 9706), (3427, 8440), (4220, 6854), (4853, 5960)]