209317875

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{42937}}^1$

素因数の和:42968

約数の個数: 32

約数和(自身を含む): 375106368

約数和(自身を除く): 165788493

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 975, 1625, 4875, 42937, 128811, 214685, 558181, 644055, 1073425, 1674543, 2790905, 3220275, 5367125, 8372715, 13954525, 16101375, 41863575, 69772625, 209317875]

約数ペア:

[(1, 209317875), (3, 69772625), (5, 41863575), (13, 16101375), (15, 13954525), (25, 8372715), (39, 5367125), (65, 3220275), (75, 2790905), (125, 1674543), (195, 1073425), (325, 644055), (375, 558181), (975, 214685), (1625, 128811), (4875, 42937)]