71421520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{929}}^1$

素因数の和:1004

約数の個数: 60

約数和(自身を含む): 171769140

約数和(自身を除く): 100347620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 929, 961, 1240, 1858, 1922, 2480, 3716, 3844, 4645, 4805, 7432, 7688, 9290, 9610, 14864, 15376, 18580, 19220, 28799, 37160, 38440, 57598, 74320, 76880, 115196, 143995, 230392, 287990, 460784, 575980, 892769, 1151960, 1785538, 2303920, 3571076, 4463845, 7142152, 8927690, 14284304, 17855380, 35710760, 71421520]

約数ペア:

[(1, 71421520), (2, 35710760), (4, 17855380), (5, 14284304), (8, 8927690), (10, 7142152), (16, 4463845), (20, 3571076), (31, 2303920), (40, 1785538), (62, 1151960), (80, 892769), (124, 575980), (155, 460784), (248, 287990), (310, 230392), (496, 143995), (620, 115196), (929, 76880), (961, 74320), (1240, 57598), (1858, 38440), (1922, 37160), (2480, 28799), (3716, 19220), (3844, 18580), (4645, 15376), (4805, 14864), (7432, 9610), (7688, 9290)]