72711680

素因数分解:

$2^9\times 5^1\times {\mathrm{28403}}^1$

素因数の和:28426

約数の個数: 40

約数和(自身を含む): 174343752

約数和(自身を除く): 101632072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 28403, 56806, 113612, 142015, 227224, 284030, 454448, 568060, 908896, 1136120, 1817792, 2272240, 3635584, 4544480, 7271168, 9088960, 14542336, 18177920, 36355840, 72711680]

約数ペア:

[(1, 72711680), (2, 36355840), (4, 18177920), (5, 14542336), (8, 9088960), (10, 7271168), (16, 4544480), (20, 3635584), (32, 2272240), (40, 1817792), (64, 1136120), (80, 908896), (128, 568060), (160, 454448), (256, 284030), (320, 227224), (512, 142015), (640, 113612), (1280, 56806), (2560, 28403)]