20173878910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{641}}^1\times {\mathrm{709}}^1$

素因数の和:1573

約数の個数: 64

約数和(自身を含む): 38201362560

約数和(自身を除く): 18027483650

約数列:

[1, 2, 5, 10, 23, 46, 115, 193, 230, 386, 641, 709, 965, 1282, 1418, 1930, 3205, 3545, 4439, 6410, 7090, 8878, 14743, 16307, 22195, 29486, 32614, 44390, 73715, 81535, 123713, 136837, 147430, 163070, 247426, 273674, 454469, 618565, 684185, 908938, 1237130, 1368370, 2272345, 2845399, 3147251, 4544690, 5690798, 6294502, 10452787, 14226995, 15736255, 20905574, 28453990, 31472510, 52263935, 87712517, 104527870, 175425034, 438562585, 877125170, 2017387891, 4034775782, 10086939455, 20173878910]

約数ペア:

[(1, 20173878910), (2, 10086939455), (5, 4034775782), (10, 2017387891), (23, 877125170), (46, 438562585), (115, 175425034), (193, 104527870), (230, 87712517), (386, 52263935), (641, 31472510), (709, 28453990), (965, 20905574), (1282, 15736255), (1418, 14226995), (1930, 10452787), (3205, 6294502), (3545, 5690798), (4439, 4544690), (6410, 3147251), (7090, 2845399), (8878, 2272345), (14743, 1368370), (16307, 1237130), (22195, 908938), (29486, 684185), (32614, 618565), (44390, 454469), (73715, 273674), (81535, 247426), (123713, 163070), (136837, 147430)]