215843985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2371}}^1$

素因数の和:2423

約数の個数: 72

約数和(自身を含む): 454399296

約数和(自身を除く): 238555311

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 289, 315, 357, 595, 765, 867, 1071, 1445, 1785, 2023, 2371, 2601, 4335, 5355, 6069, 7113, 10115, 11855, 13005, 16597, 18207, 21339, 30345, 35565, 40307, 49791, 82985, 91035, 106695, 120921, 149373, 201535, 248955, 282149, 362763, 604605, 685219, 746865, 846447, 1410745, 1813815, 2055657, 2539341, 3426095, 4232235, 4796533, 6166971, 10278285, 12696705, 14389599, 23982665, 30834855, 43168797, 71947995, 215843985]

約数ペア:

[(1, 215843985), (3, 71947995), (5, 43168797), (7, 30834855), (9, 23982665), (15, 14389599), (17, 12696705), (21, 10278285), (35, 6166971), (45, 4796533), (51, 4232235), (63, 3426095), (85, 2539341), (105, 2055657), (119, 1813815), (153, 1410745), (255, 846447), (289, 746865), (315, 685219), (357, 604605), (595, 362763), (765, 282149), (867, 248955), (1071, 201535), (1445, 149373), (1785, 120921), (2023, 106695), (2371, 91035), (2601, 82985), (4335, 49791), (5355, 40307), (6069, 35565), (7113, 30345), (10115, 21339), (11855, 18207), (13005, 16597)]