9920295

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 21874320

約数和(自身を除く): 11954025

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 49, 55, 63, 77, 99, 105, 147, 165, 231, 245, 315, 385, 409, 441, 495, 539, 693, 735, 1155, 1227, 1617, 2045, 2205, 2695, 2863, 3465, 3681, 4499, 4851, 6135, 8085, 8589, 13497, 14315, 18405, 20041, 22495, 24255, 25767, 31493, 40491, 42945, 60123, 67485, 94479, 100205, 128835, 157465, 180369, 202455, 220451, 283437, 300615, 472395, 661353, 901845, 1102255, 1417185, 1984059, 3306765, 9920295]

約数ペア:

[(1, 9920295), (3, 3306765), (5, 1984059), (7, 1417185), (9, 1102255), (11, 901845), (15, 661353), (21, 472395), (33, 300615), (35, 283437), (45, 220451), (49, 202455), (55, 180369), (63, 157465), (77, 128835), (99, 100205), (105, 94479), (147, 67485), (165, 60123), (231, 42945), (245, 40491), (315, 31493), (385, 25767), (409, 24255), (441, 22495), (495, 20041), (539, 18405), (693, 14315), (735, 13497), (1155, 8589), (1227, 8085), (1617, 6135), (2045, 4851), (2205, 4499), (2695, 3681), (2863, 3465)]