16988894228

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{263}}^1\times {\mathrm{421}}^1\times {\mathrm{431}}^1$

素因数の和:1208

約数の個数: 48

約数和(自身を含む): 30320801280

約数和(自身を除く): 13331907052

約数列:

[1, 2, 4, 89, 178, 263, 356, 421, 431, 526, 842, 862, 1052, 1684, 1724, 23407, 37469, 38359, 46814, 74938, 76718, 93628, 110723, 113353, 149876, 153436, 181451, 221446, 226706, 362902, 442892, 453412, 725804, 9854347, 10088417, 16149139, 19708694, 20176834, 32298278, 39417388, 40353668, 47721613, 64596556, 95443226, 190886452, 4247223557, 8494447114, 16988894228]

約数ペア:

[(1, 16988894228), (2, 8494447114), (4, 4247223557), (89, 190886452), (178, 95443226), (263, 64596556), (356, 47721613), (421, 40353668), (431, 39417388), (526, 32298278), (842, 20176834), (862, 19708694), (1052, 16149139), (1684, 10088417), (1724, 9854347), (23407, 725804), (37469, 453412), (38359, 442892), (46814, 362902), (74938, 226706), (76718, 221446), (93628, 181451), (110723, 153436), (113353, 149876)]