20147662840

素因数分解:

$2^3\times 5^1\times {\mathrm{3511}}^1\times {\mathrm{143461}}^1$

素因数の和:146983

約数の個数: 32

約数和(自身を含む): 45345468960

約数和(自身を除く): 25197806120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3511, 7022, 14044, 17555, 28088, 35110, 70220, 140440, 143461, 286922, 573844, 717305, 1147688, 1434610, 2869220, 5738440, 503691571, 1007383142, 2014766284, 2518457855, 4029532568, 5036915710, 10073831420, 20147662840]

約数ペア:

[(1, 20147662840), (2, 10073831420), (4, 5036915710), (5, 4029532568), (8, 2518457855), (10, 2014766284), (20, 1007383142), (40, 503691571), (3511, 5738440), (7022, 2869220), (14044, 1434610), (17555, 1147688), (28088, 717305), (35110, 573844), (70220, 286922), (140440, 143461)]