388289775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{304541}}^1$

素因数の和:304571

約数の個数: 24

約数和(自身を含む): 679737744

約数和(自身を除く): 291447969

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 304541, 913623, 1522705, 4568115, 5177197, 7613525, 15531591, 22840575, 25885985, 77657955, 129429925, 388289775]

約数ペア:

[(1, 388289775), (3, 129429925), (5, 77657955), (15, 25885985), (17, 22840575), (25, 15531591), (51, 7613525), (75, 5177197), (85, 4568115), (255, 1522705), (425, 913623), (1275, 304541)]