18820404016

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{676409}}^1$

素因数の和:676501

約数の個数: 40

約数和(自身を含む): 38246927040

約数和(自身を除く): 19426523024

約数列:

[1, 2, 4, 8, 16, 37, 47, 74, 94, 148, 188, 296, 376, 592, 752, 1739, 3478, 6956, 13912, 27824, 676409, 1352818, 2705636, 5411272, 10822544, 25027133, 31791223, 50054266, 63582446, 100108532, 127164892, 200217064, 254329784, 400434128, 508659568, 1176275251, 2352550502, 4705101004, 9410202008, 18820404016]

約数ペア:

[(1, 18820404016), (2, 9410202008), (4, 4705101004), (8, 2352550502), (16, 1176275251), (37, 508659568), (47, 400434128), (74, 254329784), (94, 200217064), (148, 127164892), (188, 100108532), (296, 63582446), (376, 50054266), (592, 31791223), (752, 25027133), (1739, 10822544), (3478, 5411272), (6956, 2705636), (13912, 1352818), (27824, 676409)]