17990770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 38162880

約数和(自身を除く): 20172110

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 139, 215, 278, 301, 430, 602, 695, 973, 1390, 1505, 1849, 1946, 3010, 3698, 4865, 5977, 9245, 9730, 11954, 12943, 18490, 25886, 29885, 41839, 59770, 64715, 83678, 129430, 209195, 257011, 418390, 514022, 1285055, 1799077, 2570110, 3598154, 8995385, 17990770]

約数ペア:

[(1, 17990770), (2, 8995385), (5, 3598154), (7, 2570110), (10, 1799077), (14, 1285055), (35, 514022), (43, 418390), (70, 257011), (86, 209195), (139, 129430), (215, 83678), (278, 64715), (301, 59770), (430, 41839), (602, 29885), (695, 25886), (973, 18490), (1390, 12943), (1505, 11954), (1849, 9730), (1946, 9245), (3010, 5977), (3698, 4865)]