389553215

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{3797}}^1$

素因数の和:3907

約数の個数: 24

約数和(自身を含む): 503705952

約数和(自身を除く): 114152737

約数列:

[1, 5, 17, 71, 85, 289, 355, 1207, 1445, 3797, 6035, 18985, 20519, 64549, 102595, 269587, 322745, 1097333, 1347935, 4582979, 5486665, 22914895, 77910643, 389553215]

約数ペア:

[(1, 389553215), (5, 77910643), (17, 22914895), (71, 5486665), (85, 4582979), (289, 1347935), (355, 1097333), (1207, 322745), (1445, 269587), (3797, 102595), (6035, 64549), (18985, 20519)]