16444640

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1301}}^1$

素因数の和:1395

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 22927840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1301, 1580, 2528, 2602, 3160, 5204, 6320, 6505, 10408, 12640, 13010, 20816, 26020, 41632, 52040, 102779, 104080, 205558, 208160, 411116, 513895, 822232, 1027790, 1644464, 2055580, 3288928, 4111160, 8222320, 16444640]

約数ペア:

[(1, 16444640), (2, 8222320), (4, 4111160), (5, 3288928), (8, 2055580), (10, 1644464), (16, 1027790), (20, 822232), (32, 513895), (40, 411116), (79, 208160), (80, 205558), (158, 104080), (160, 102779), (316, 52040), (395, 41632), (632, 26020), (790, 20816), (1264, 13010), (1301, 12640), (1580, 10408), (2528, 6505), (2602, 6320), (3160, 5204)]