403831420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{21011}}^1$

素因数の和:21082

約数の個数: 36

約数和(自身を含む): 876326472

約数和(自身を除く): 472495052

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3844, 4805, 9610, 19220, 21011, 42022, 84044, 105055, 210110, 420220, 651341, 1302682, 2605364, 3256705, 6513410, 13026820, 20191571, 40383142, 80766284, 100957855, 201915710, 403831420]

約数ペア:

[(1, 403831420), (2, 201915710), (4, 100957855), (5, 80766284), (10, 40383142), (20, 20191571), (31, 13026820), (62, 6513410), (124, 3256705), (155, 2605364), (310, 1302682), (620, 651341), (961, 420220), (1922, 210110), (3844, 105055), (4805, 84044), (9610, 42022), (19220, 21011)]