520000245

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{245863}}^1$

素因数の和:245921

約数の個数: 24

約数和(自身を含む): 920514816

約数和(自身を除く): 400514571

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 245863, 737589, 1229315, 2212767, 3687945, 11063835, 11555561, 34666683, 57777805, 104000049, 173333415, 520000245]

約数ペア:

[(1, 520000245), (3, 173333415), (5, 104000049), (9, 57777805), (15, 34666683), (45, 11555561), (47, 11063835), (141, 3687945), (235, 2212767), (423, 1229315), (705, 737589), (2115, 245863)]