65315920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:572

約数の個数: 80

約数和(自身を含む): 161864640

約数和(自身を除く): 96548720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 97, 152, 190, 194, 304, 380, 388, 443, 485, 760, 776, 886, 970, 1520, 1552, 1772, 1843, 1940, 2215, 3544, 3686, 3880, 4430, 7088, 7372, 7760, 8417, 8860, 9215, 14744, 16834, 17720, 18430, 29488, 33668, 35440, 36860, 42085, 42971, 67336, 73720, 84170, 85942, 134672, 147440, 168340, 171884, 214855, 336680, 343768, 429710, 673360, 687536, 816449, 859420, 1632898, 1718840, 3265796, 3437680, 4082245, 6531592, 8164490, 13063184, 16328980, 32657960, 65315920]

約数ペア:

[(1, 65315920), (2, 32657960), (4, 16328980), (5, 13063184), (8, 8164490), (10, 6531592), (16, 4082245), (19, 3437680), (20, 3265796), (38, 1718840), (40, 1632898), (76, 859420), (80, 816449), (95, 687536), (97, 673360), (152, 429710), (190, 343768), (194, 336680), (304, 214855), (380, 171884), (388, 168340), (443, 147440), (485, 134672), (760, 85942), (776, 84170), (886, 73720), (970, 67336), (1520, 42971), (1552, 42085), (1772, 36860), (1843, 35440), (1940, 33668), (2215, 29488), (3544, 18430), (3686, 17720), (3880, 16834), (4430, 14744), (7088, 9215), (7372, 8860), (7760, 8417)]