16398140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3923}}^1$

素因数の和:3962

約数の個数: 48

約数和(自身を含む): 39553920

約数和(自身を除く): 23155780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 3923, 4180, 7846, 15692, 19615, 39230, 43153, 74537, 78460, 86306, 149074, 172612, 215765, 298148, 372685, 431530, 745370, 819907, 863060, 1490740, 1639814, 3279628, 4099535, 8199070, 16398140]

約数ペア:

[(1, 16398140), (2, 8199070), (4, 4099535), (5, 3279628), (10, 1639814), (11, 1490740), (19, 863060), (20, 819907), (22, 745370), (38, 431530), (44, 372685), (55, 298148), (76, 215765), (95, 172612), (110, 149074), (190, 86306), (209, 78460), (220, 74537), (380, 43153), (418, 39230), (836, 19615), (1045, 15692), (2090, 7846), (3923, 4180)]