128517616

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{479}}^1$

素因数の和:937

約数の個数: 40

約数和(自身を含む): 256233600

約数和(自身を除く): 127715984

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 409, 479, 656, 818, 958, 1636, 1916, 3272, 3832, 6544, 7664, 16769, 19639, 33538, 39278, 67076, 78556, 134152, 157112, 195911, 268304, 314224, 391822, 783644, 1567288, 3134576, 8032351, 16064702, 32129404, 64258808, 128517616]

約数ペア:

[(1, 128517616), (2, 64258808), (4, 32129404), (8, 16064702), (16, 8032351), (41, 3134576), (82, 1567288), (164, 783644), (328, 391822), (409, 314224), (479, 268304), (656, 195911), (818, 157112), (958, 134152), (1636, 78556), (1916, 67076), (3272, 39278), (3832, 33538), (6544, 19639), (7664, 16769)]