66989775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{52541}}^1$

素因数の和:52571

約数の個数: 24

約数和(自身を含む): 117273744

約数和(自身を除く): 50283969

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 52541, 157623, 262705, 788115, 893197, 1313525, 2679591, 3940575, 4465985, 13397955, 22329925, 66989775]

約数ペア:

[(1, 66989775), (3, 22329925), (5, 13397955), (15, 4465985), (17, 3940575), (25, 2679591), (51, 1313525), (75, 893197), (85, 788115), (255, 262705), (425, 157623), (1275, 52541)]