2842420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 6935040

約数和(自身を除く): 4092620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 257, 316, 395, 514, 553, 790, 1028, 1106, 1285, 1580, 1799, 2212, 2570, 2765, 3598, 5140, 5530, 7196, 8995, 11060, 17990, 20303, 35980, 40606, 81212, 101515, 142121, 203030, 284242, 406060, 568484, 710605, 1421210, 2842420]

約数ペア:

[(1, 2842420), (2, 1421210), (4, 710605), (5, 568484), (7, 406060), (10, 284242), (14, 203030), (20, 142121), (28, 101515), (35, 81212), (70, 40606), (79, 35980), (140, 20303), (158, 17990), (257, 11060), (316, 8995), (395, 7196), (514, 5530), (553, 5140), (790, 3598), (1028, 2765), (1106, 2570), (1285, 2212), (1580, 1799)]