28142520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33503}}^1$

素因数の和:33524

約数の個数: 64

約数和(自身を含む): 96491520

約数和(自身を除く): 68349000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 33503, 67006, 100509, 134012, 167515, 201018, 234521, 268024, 335030, 402036, 469042, 502545, 670060, 703563, 804072, 938084, 1005090, 1172605, 1340120, 1407126, 1876168, 2010180, 2345210, 2814252, 3517815, 4020360, 4690420, 5628504, 7035630, 9380840, 14071260, 28142520]

約数ペア:

[(1, 28142520), (2, 14071260), (3, 9380840), (4, 7035630), (5, 5628504), (6, 4690420), (7, 4020360), (8, 3517815), (10, 2814252), (12, 2345210), (14, 2010180), (15, 1876168), (20, 1407126), (21, 1340120), (24, 1172605), (28, 1005090), (30, 938084), (35, 804072), (40, 703563), (42, 670060), (56, 502545), (60, 469042), (70, 402036), (84, 335030), (105, 268024), (120, 234521), (140, 201018), (168, 167515), (210, 134012), (280, 100509), (420, 67006), (840, 33503)]