16563740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 36191232

約数和(自身を除く): 19627492

約数列:

[1, 2, 4, 5, 10, 20, 47, 67, 94, 134, 188, 235, 263, 268, 335, 470, 526, 670, 940, 1052, 1315, 1340, 2630, 3149, 5260, 6298, 12361, 12596, 15745, 17621, 24722, 31490, 35242, 49444, 61805, 62980, 70484, 88105, 123610, 176210, 247220, 352420, 828187, 1656374, 3312748, 4140935, 8281870, 16563740]

約数ペア:

[(1, 16563740), (2, 8281870), (4, 4140935), (5, 3312748), (10, 1656374), (20, 828187), (47, 352420), (67, 247220), (94, 176210), (134, 123610), (188, 88105), (235, 70484), (263, 62980), (268, 61805), (335, 49444), (470, 35242), (526, 31490), (670, 24722), (940, 17621), (1052, 15745), (1315, 12596), (1340, 12361), (2630, 6298), (3149, 5260)]