249143720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{20693}}^1$

素因数の和:20754

約数の個数: 64

約数和(自身を含む): 655585920

約数和(自身を除く): 406442200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 12040, 20693, 41386, 82772, 103465, 144851, 165544, 206930, 289702, 413860, 579404, 724255, 827720, 889799, 1158808, 1448510, 1779598, 2897020, 3559196, 4448995, 5794040, 6228593, 7118392, 8897990, 12457186, 17795980, 24914372, 31142965, 35591960, 49828744, 62285930, 124571860, 249143720]

約数ペア:

[(1, 249143720), (2, 124571860), (4, 62285930), (5, 49828744), (7, 35591960), (8, 31142965), (10, 24914372), (14, 17795980), (20, 12457186), (28, 8897990), (35, 7118392), (40, 6228593), (43, 5794040), (56, 4448995), (70, 3559196), (86, 2897020), (140, 1779598), (172, 1448510), (215, 1158808), (280, 889799), (301, 827720), (344, 724255), (430, 579404), (602, 413860), (860, 289702), (1204, 206930), (1505, 165544), (1720, 144851), (2408, 103465), (3010, 82772), (6020, 41386), (12040, 20693)]