321781490

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1\times {\mathrm{673}}^1$

素因数の和:1166

約数の個数: 32

約数和(自身を含む): 585975600

約数和(自身を除く): 264194110

約数列:

[1, 2, 5, 10, 137, 274, 349, 673, 685, 698, 1346, 1370, 1745, 3365, 3490, 6730, 47813, 92201, 95626, 184402, 234877, 239065, 461005, 469754, 478130, 922010, 1174385, 2348770, 32178149, 64356298, 160890745, 321781490]

約数ペア:

[(1, 321781490), (2, 160890745), (5, 64356298), (10, 32178149), (137, 2348770), (274, 1174385), (349, 922010), (673, 478130), (685, 469754), (698, 461005), (1346, 239065), (1370, 234877), (1745, 184402), (3365, 95626), (3490, 92201), (6730, 47813)]