31867220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20693}}^1$

素因数の和:20720

約数の個数: 48

約数和(自身を含む): 83438208

約数和(自身を除く): 51570988

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20693, 41386, 82772, 103465, 144851, 206930, 227623, 289702, 413860, 455246, 579404, 724255, 910492, 1138115, 1448510, 1593361, 2276230, 2897020, 3186722, 4552460, 6373444, 7966805, 15933610, 31867220]

約数ペア:

[(1, 31867220), (2, 15933610), (4, 7966805), (5, 6373444), (7, 4552460), (10, 3186722), (11, 2897020), (14, 2276230), (20, 1593361), (22, 1448510), (28, 1138115), (35, 910492), (44, 724255), (55, 579404), (70, 455246), (77, 413860), (110, 289702), (140, 227623), (154, 206930), (220, 144851), (308, 103465), (385, 82772), (770, 41386), (1540, 20693)]