84070420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20707}}^1$

素因数の和:20752

約数の個数: 48

約数和(自身を含む): 208736640

約数和(自身を除く): 124666220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 20707, 41414, 82828, 103535, 144949, 207070, 289898, 414140, 579796, 600503, 724745, 1201006, 1449490, 2402012, 2898980, 3002515, 4203521, 6005030, 8407042, 12010060, 16814084, 21017605, 42035210, 84070420]

約数ペア:

[(1, 84070420), (2, 42035210), (4, 21017605), (5, 16814084), (7, 12010060), (10, 8407042), (14, 6005030), (20, 4203521), (28, 3002515), (29, 2898980), (35, 2402012), (58, 1449490), (70, 1201006), (116, 724745), (140, 600503), (145, 579796), (203, 414140), (290, 289898), (406, 207070), (580, 144949), (812, 103535), (1015, 82828), (2030, 41414), (4060, 20707)]