649520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 1580256

約数和(自身を除く): 930736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 353, 368, 460, 706, 920, 1412, 1765, 1840, 2824, 3530, 5648, 7060, 8119, 14120, 16238, 28240, 32476, 40595, 64952, 81190, 129904, 162380, 324760, 649520]

約数ペア:

[(1, 649520), (2, 324760), (4, 162380), (5, 129904), (8, 81190), (10, 64952), (16, 40595), (20, 32476), (23, 28240), (40, 16238), (46, 14120), (80, 8119), (92, 7060), (115, 5648), (184, 3530), (230, 2824), (353, 1840), (368, 1765), (460, 1412), (706, 920)]