27777560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 66052800

約数和(自身を除く): 38275240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 184, 218, 230, 277, 436, 460, 545, 554, 872, 920, 1090, 1108, 1385, 2180, 2216, 2507, 2770, 4360, 5014, 5540, 6371, 10028, 11080, 12535, 12742, 20056, 25070, 25484, 30193, 31855, 50140, 50968, 60386, 63710, 100280, 120772, 127420, 150965, 241544, 254840, 301930, 603860, 694439, 1207720, 1388878, 2777756, 3472195, 5555512, 6944390, 13888780, 27777560]

約数ペア:

[(1, 27777560), (2, 13888780), (4, 6944390), (5, 5555512), (8, 3472195), (10, 2777756), (20, 1388878), (23, 1207720), (40, 694439), (46, 603860), (92, 301930), (109, 254840), (115, 241544), (184, 150965), (218, 127420), (230, 120772), (277, 100280), (436, 63710), (460, 60386), (545, 50968), (554, 50140), (872, 31855), (920, 30193), (1090, 25484), (1108, 25070), (1385, 20056), (2180, 12742), (2216, 12535), (2507, 11080), (2770, 10028), (4360, 6371), (5014, 5540)]