1520408721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{31981}}^1$

素因数の和:32073

約数の個数: 32

約数和(自身を含む): 2321125632

約数和(自身を除く): 800716911

約数列:

[1, 3, 13, 23, 39, 53, 69, 159, 299, 689, 897, 1219, 2067, 3657, 15847, 31981, 47541, 95943, 415753, 735563, 1247259, 1694993, 2206689, 5084979, 9562319, 22034909, 28686957, 38984839, 66104727, 116954517, 506802907, 1520408721]

約数ペア:

[(1, 1520408721), (3, 506802907), (13, 116954517), (23, 66104727), (39, 38984839), (53, 28686957), (69, 22034909), (159, 9562319), (299, 5084979), (689, 2206689), (897, 1694993), (1219, 1247259), (2067, 735563), (3657, 415753), (15847, 95943), (31981, 47541)]