81732556

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 154173600

約数和(自身を除く): 72441044

約数列:

[1, 2, 4, 29, 37, 58, 74, 116, 137, 139, 148, 274, 278, 548, 556, 1073, 2146, 3973, 4031, 4292, 5069, 5143, 7946, 8062, 10138, 10286, 15892, 16124, 19043, 20276, 20572, 38086, 76172, 147001, 149147, 294002, 298294, 552247, 588004, 596588, 704591, 1104494, 1409182, 2208988, 2818364, 20433139, 40866278, 81732556]

約数ペア:

[(1, 81732556), (2, 40866278), (4, 20433139), (29, 2818364), (37, 2208988), (58, 1409182), (74, 1104494), (116, 704591), (137, 596588), (139, 588004), (148, 552247), (274, 298294), (278, 294002), (548, 149147), (556, 147001), (1073, 76172), (2146, 38086), (3973, 20572), (4031, 20276), (4292, 19043), (5069, 16124), (5143, 15892), (7946, 10286), (8062, 10138)]