155129720

素因数分解:

$2^3\times 5^1\times {\mathrm{937}}^1\times {\mathrm{4139}}^1$

素因数の和:5087

約数の個数: 32

約数和(自身を含む): 349498800

約数和(自身を除く): 194369080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 937, 1874, 3748, 4139, 4685, 7496, 8278, 9370, 16556, 18740, 20695, 33112, 37480, 41390, 82780, 165560, 3878243, 7756486, 15512972, 19391215, 31025944, 38782430, 77564860, 155129720]

約数ペア:

[(1, 155129720), (2, 77564860), (4, 38782430), (5, 31025944), (8, 19391215), (10, 15512972), (20, 7756486), (40, 3878243), (937, 165560), (1874, 82780), (3748, 41390), (4139, 37480), (4685, 33112), (7496, 20695), (8278, 18740), (9370, 16556)]