2800125

素因数分解:

$3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 5353920

約数和(自身を除く): 2553795

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 125, 131, 171, 225, 285, 375, 393, 475, 655, 855, 1125, 1179, 1425, 1965, 2375, 2489, 3275, 4275, 5895, 7125, 7467, 9825, 12445, 16375, 21375, 22401, 29475, 37335, 49125, 62225, 112005, 147375, 186675, 311125, 560025, 933375, 2800125]

約数ペア:

[(1, 2800125), (3, 933375), (5, 560025), (9, 311125), (15, 186675), (19, 147375), (25, 112005), (45, 62225), (57, 49125), (75, 37335), (95, 29475), (125, 22401), (131, 21375), (171, 16375), (225, 12445), (285, 9825), (375, 7467), (393, 7125), (475, 5895), (655, 4275), (855, 3275), (1125, 2489), (1179, 2375), (1425, 1965)]