30990235

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 42854400

約数和(自身を除く): 11864165

約数列:

[1, 5, 17, 19, 31, 85, 95, 155, 323, 527, 589, 619, 1615, 2635, 2945, 3095, 10013, 10523, 11761, 19189, 50065, 52615, 58805, 95945, 199937, 326213, 364591, 999685, 1631065, 1822955, 6198047, 30990235]

約数ペア:

[(1, 30990235), (5, 6198047), (17, 1822955), (19, 1631065), (31, 999685), (85, 364591), (95, 326213), (155, 199937), (323, 95945), (527, 58805), (589, 52615), (619, 50065), (1615, 19189), (2635, 11761), (2945, 10523), (3095, 10013)]