1219995

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{1291}}^1$

素因数の和:1312

約数の個数: 32

約数和(自身を含む): 2480640

約数和(自身を除く): 1260645

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 1291, 3873, 6455, 9037, 11619, 19365, 27111, 34857, 45185, 58095, 81333, 135555, 174285, 243999, 406665, 1219995]

約数ペア:

[(1, 1219995), (3, 406665), (5, 243999), (7, 174285), (9, 135555), (15, 81333), (21, 58095), (27, 45185), (35, 34857), (45, 27111), (63, 19365), (105, 11619), (135, 9037), (189, 6455), (315, 3873), (945, 1291)]