20952240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1303}}^1$

素因数の和:1386

約数の個数: 80

約数和(自身を含む): 65971968

約数和(自身を除く): 45019728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 67, 80, 120, 134, 201, 240, 268, 335, 402, 536, 670, 804, 1005, 1072, 1303, 1340, 1608, 2010, 2606, 2680, 3216, 3909, 4020, 5212, 5360, 6515, 7818, 8040, 10424, 13030, 15636, 16080, 19545, 20848, 26060, 31272, 39090, 52120, 62544, 78180, 87301, 104240, 156360, 174602, 261903, 312720, 349204, 436505, 523806, 698408, 873010, 1047612, 1309515, 1396816, 1746020, 2095224, 2619030, 3492040, 4190448, 5238060, 6984080, 10476120, 20952240]

約数ペア:

[(1, 20952240), (2, 10476120), (3, 6984080), (4, 5238060), (5, 4190448), (6, 3492040), (8, 2619030), (10, 2095224), (12, 1746020), (15, 1396816), (16, 1309515), (20, 1047612), (24, 873010), (30, 698408), (40, 523806), (48, 436505), (60, 349204), (67, 312720), (80, 261903), (120, 174602), (134, 156360), (201, 104240), (240, 87301), (268, 78180), (335, 62544), (402, 52120), (536, 39090), (670, 31272), (804, 26060), (1005, 20848), (1072, 19545), (1303, 16080), (1340, 15636), (1608, 13030), (2010, 10424), (2606, 8040), (2680, 7818), (3216, 6515), (3909, 5360), (4020, 5212)]