781875

素因数分解:

$3^2\times 5^4\times {\mathrm{139}}^1$

素因数の和:165

約数の個数: 30

約数和(自身を含む): 1421420

約数和(自身を除く): 639545

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 139, 225, 375, 417, 625, 695, 1125, 1251, 1875, 2085, 3475, 5625, 6255, 10425, 17375, 31275, 52125, 86875, 156375, 260625, 781875]

約数ペア:

[(1, 781875), (3, 260625), (5, 156375), (9, 86875), (15, 52125), (25, 31275), (45, 17375), (75, 10425), (125, 6255), (139, 5625), (225, 3475), (375, 2085), (417, 1875), (625, 1251), (695, 1125)]