210471475

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{29131}}^1$

素因数の和:29175

約数の個数: 18

約数和(自身を含む): 277249244

約数和(自身を除く): 66777769

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 7225, 29131, 145655, 495227, 728275, 2476135, 8418859, 12380675, 42094295, 210471475]

約数ペア:

[(1, 210471475), (5, 42094295), (17, 12380675), (25, 8418859), (85, 2476135), (289, 728275), (425, 495227), (1445, 145655), (7225, 29131)]