291215390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{18947}}^1$

素因数の和:19036

約数の個数: 32

約数和(自身を含む): 552523680

約数和(自身を除く): 261308290

約数列:

[1, 2, 5, 10, 29, 53, 58, 106, 145, 265, 290, 530, 1537, 3074, 7685, 15370, 18947, 37894, 94735, 189470, 549463, 1004191, 1098926, 2008382, 2747315, 5020955, 5494630, 10041910, 29121539, 58243078, 145607695, 291215390]

約数ペア:

[(1, 291215390), (2, 145607695), (5, 58243078), (10, 29121539), (29, 10041910), (53, 5494630), (58, 5020955), (106, 2747315), (145, 2008382), (265, 1098926), (290, 1004191), (530, 549463), (1537, 189470), (3074, 94735), (7685, 37894), (15370, 18947)]