47654320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1979}}^1$

素因数の和:2042

約数の個数: 80

約数和(自身を含む): 129634560

約数和(自身を除く): 81980240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1505, 1720, 1979, 2408, 3010, 3440, 3958, 4816, 6020, 7916, 9895, 12040, 13853, 15832, 19790, 24080, 27706, 31664, 39580, 55412, 69265, 79160, 85097, 110824, 138530, 158320, 170194, 221648, 277060, 340388, 425485, 554120, 595679, 680776, 850970, 1108240, 1191358, 1361552, 1701940, 2382716, 2978395, 3403880, 4765432, 5956790, 6807760, 9530864, 11913580, 23827160, 47654320]

約数ペア:

[(1, 47654320), (2, 23827160), (4, 11913580), (5, 9530864), (7, 6807760), (8, 5956790), (10, 4765432), (14, 3403880), (16, 2978395), (20, 2382716), (28, 1701940), (35, 1361552), (40, 1191358), (43, 1108240), (56, 850970), (70, 680776), (80, 595679), (86, 554120), (112, 425485), (140, 340388), (172, 277060), (215, 221648), (280, 170194), (301, 158320), (344, 138530), (430, 110824), (560, 85097), (602, 79160), (688, 69265), (860, 55412), (1204, 39580), (1505, 31664), (1720, 27706), (1979, 24080), (2408, 19790), (3010, 15832), (3440, 13853), (3958, 12040), (4816, 9895), (6020, 7916)]