20788688

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3323}}^1$

素因数の和:3371

約数の個数: 40

約数和(自身を含む): 44515008

約数和(自身を除く): 23726320

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 92, 136, 184, 272, 368, 391, 782, 1564, 3128, 3323, 6256, 6646, 13292, 26584, 53168, 56491, 76429, 112982, 152858, 225964, 305716, 451928, 611432, 903856, 1222864, 1299293, 2598586, 5197172, 10394344, 20788688]

約数ペア:

[(1, 20788688), (2, 10394344), (4, 5197172), (8, 2598586), (16, 1299293), (17, 1222864), (23, 903856), (34, 611432), (46, 451928), (68, 305716), (92, 225964), (136, 152858), (184, 112982), (272, 76429), (368, 56491), (391, 53168), (782, 26584), (1564, 13292), (3128, 6646), (3323, 6256)]