320657715

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{145423}}^1$

素因数の和:145448

約数の個数: 36

約数和(自身を含む): 646555104

約数和(自身を除く): 325897389

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 145423, 436269, 727115, 1017961, 1308807, 2181345, 3053883, 5089805, 6544035, 7125727, 9161649, 15269415, 21377181, 35628635, 45808245, 64131543, 106885905, 320657715]

約数ペア:

[(1, 320657715), (3, 106885905), (5, 64131543), (7, 45808245), (9, 35628635), (15, 21377181), (21, 15269415), (35, 9161649), (45, 7125727), (49, 6544035), (63, 5089805), (105, 3053883), (147, 2181345), (245, 1308807), (315, 1017961), (441, 727115), (735, 436269), (2205, 145423)]