20832420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:469

約数の個数: 96

約数和(自身を含む): 67269888

約数和(自身を除く): 46437468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 193, 210, 257, 386, 420, 514, 579, 771, 772, 965, 1028, 1158, 1285, 1351, 1542, 1799, 1930, 2316, 2570, 2702, 2895, 3084, 3598, 3855, 3860, 4053, 5140, 5397, 5404, 5790, 6755, 7196, 7710, 8106, 8995, 10794, 11580, 13510, 15420, 16212, 17990, 20265, 21588, 26985, 27020, 35980, 40530, 49601, 53970, 81060, 99202, 107940, 148803, 198404, 248005, 297606, 347207, 496010, 595212, 694414, 744015, 992020, 1041621, 1388828, 1488030, 1736035, 2083242, 2976060, 3472070, 4166484, 5208105, 6944140, 10416210, 20832420]

約数ペア:

[(1, 20832420), (2, 10416210), (3, 6944140), (4, 5208105), (5, 4166484), (6, 3472070), (7, 2976060), (10, 2083242), (12, 1736035), (14, 1488030), (15, 1388828), (20, 1041621), (21, 992020), (28, 744015), (30, 694414), (35, 595212), (42, 496010), (60, 347207), (70, 297606), (84, 248005), (105, 198404), (140, 148803), (193, 107940), (210, 99202), (257, 81060), (386, 53970), (420, 49601), (514, 40530), (579, 35980), (771, 27020), (772, 26985), (965, 21588), (1028, 20265), (1158, 17990), (1285, 16212), (1351, 15420), (1542, 13510), (1799, 11580), (1930, 10794), (2316, 8995), (2570, 8106), (2702, 7710), (2895, 7196), (3084, 6755), (3598, 5790), (3855, 5404), (3860, 5397), (4053, 5140)]