298450840

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{21379}}^1$

素因数の和:21739

約数の個数: 32

約数和(自身を含む): 673470000

約数和(自身を除く): 375019160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 13960, 21379, 42758, 85516, 106895, 171032, 213790, 427580, 855160, 7461271, 14922542, 29845084, 37306355, 59690168, 74612710, 149225420, 298450840]

約数ペア:

[(1, 298450840), (2, 149225420), (4, 74612710), (5, 59690168), (8, 37306355), (10, 29845084), (20, 14922542), (40, 7461271), (349, 855160), (698, 427580), (1396, 213790), (1745, 171032), (2792, 106895), (3490, 85516), (6980, 42758), (13960, 21379)]