81206008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1997}}^1$

素因数の和:2056

約数の個数: 64

約数和(自身を含む): 181258560

約数和(自身を除く): 100052552

約数列:

[1, 2, 4, 8, 13, 17, 23, 26, 34, 46, 52, 68, 92, 104, 136, 184, 221, 299, 391, 442, 598, 782, 884, 1196, 1564, 1768, 1997, 2392, 3128, 3994, 5083, 7988, 10166, 15976, 20332, 25961, 33949, 40664, 45931, 51922, 67898, 91862, 103844, 135796, 183724, 207688, 271592, 367448, 441337, 597103, 780827, 882674, 1194206, 1561654, 1765348, 2388412, 3123308, 3530696, 4776824, 6246616, 10150751, 20301502, 40603004, 81206008]

約数ペア:

[(1, 81206008), (2, 40603004), (4, 20301502), (8, 10150751), (13, 6246616), (17, 4776824), (23, 3530696), (26, 3123308), (34, 2388412), (46, 1765348), (52, 1561654), (68, 1194206), (92, 882674), (104, 780827), (136, 597103), (184, 441337), (221, 367448), (299, 271592), (391, 207688), (442, 183724), (598, 135796), (782, 103844), (884, 91862), (1196, 67898), (1564, 51922), (1768, 45931), (1997, 40664), (2392, 33949), (3128, 25961), (3994, 20332), (5083, 15976), (7988, 10166)]