20570454

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 46584720

約数和(自身を除く): 26014266

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 157, 174, 251, 261, 314, 471, 502, 522, 753, 942, 1413, 1506, 2259, 2826, 4518, 4553, 7279, 9106, 13659, 14558, 21837, 27318, 39407, 40977, 43674, 65511, 78814, 81954, 118221, 131022, 236442, 354663, 709326, 1142803, 2285606, 3428409, 6856818, 10285227, 20570454]

約数ペア:

[(1, 20570454), (2, 10285227), (3, 6856818), (6, 3428409), (9, 2285606), (18, 1142803), (29, 709326), (58, 354663), (87, 236442), (157, 131022), (174, 118221), (251, 81954), (261, 78814), (314, 65511), (471, 43674), (502, 40977), (522, 39407), (753, 27318), (942, 21837), (1413, 14558), (1506, 13659), (2259, 9106), (2826, 7279), (4518, 4553)]