12963425

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 17022720

約数和(自身を除く): 4059295

約数列:

[1, 5, 25, 31, 43, 155, 215, 389, 775, 1075, 1333, 1945, 6665, 9725, 12059, 16727, 33325, 60295, 83635, 301475, 418175, 518537, 2592685, 12963425]

約数ペア:

[(1, 12963425), (5, 2592685), (25, 518537), (31, 418175), (43, 301475), (155, 83635), (215, 60295), (389, 33325), (775, 16727), (1075, 12059), (1333, 9725), (1945, 6665)]