31891780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 69866496

約数和(自身を除く): 37974716

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 355, 370, 607, 710, 740, 1214, 1420, 2428, 2627, 3035, 5254, 6070, 10508, 12140, 13135, 22459, 26270, 43097, 44918, 52540, 86194, 89836, 112295, 172388, 215485, 224590, 430970, 449180, 861940, 1594589, 3189178, 6378356, 7972945, 15945890, 31891780]

約数ペア:

[(1, 31891780), (2, 15945890), (4, 7972945), (5, 6378356), (10, 3189178), (20, 1594589), (37, 861940), (71, 449180), (74, 430970), (142, 224590), (148, 215485), (185, 172388), (284, 112295), (355, 89836), (370, 86194), (607, 52540), (710, 44918), (740, 43097), (1214, 26270), (1420, 22459), (2428, 13135), (2627, 12140), (3035, 10508), (5254, 6070)]