21678160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38711}}^1$

素因数の和:38731

約数の個数: 40

約数和(自身を含む): 57603456

約数和(自身を除く): 35925296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38711, 77422, 154844, 193555, 270977, 309688, 387110, 541954, 619376, 774220, 1083908, 1354885, 1548440, 2167816, 2709770, 3096880, 4335632, 5419540, 10839080, 21678160]

約数ペア:

[(1, 21678160), (2, 10839080), (4, 5419540), (5, 4335632), (7, 3096880), (8, 2709770), (10, 2167816), (14, 1548440), (16, 1354885), (20, 1083908), (28, 774220), (35, 619376), (40, 541954), (56, 387110), (70, 309688), (80, 270977), (112, 193555), (140, 154844), (280, 77422), (560, 38711)]