19894810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3559}}^1$

素因数の和:3622

約数の個数: 32

約数和(自身を含む): 39473280

約数和(自身を除く): 19578470

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 3559, 5590, 7118, 17795, 35590, 46267, 92534, 153037, 231335, 306074, 462670, 765185, 1530370, 1989481, 3978962, 9947405, 19894810]

約数ペア:

[(1, 19894810), (2, 9947405), (5, 3978962), (10, 1989481), (13, 1530370), (26, 765185), (43, 462670), (65, 306074), (86, 231335), (130, 153037), (215, 92534), (430, 46267), (559, 35590), (1118, 17795), (2795, 7118), (3559, 5590)]