80590720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{17989}}^1$

素因数の和:18015

約数の個数: 64

約数和(自身を含む): 220197600

約数和(自身を除く): 139606880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 17989, 35978, 71956, 89945, 125923, 143912, 179890, 251846, 287824, 359780, 503692, 575648, 629615, 719560, 1007384, 1151296, 1259230, 1439120, 2014768, 2302592, 2518460, 2878240, 4029536, 5036920, 5756480, 8059072, 10073840, 11512960, 16118144, 20147680, 40295360, 80590720]

約数ペア:

[(1, 80590720), (2, 40295360), (4, 20147680), (5, 16118144), (7, 11512960), (8, 10073840), (10, 8059072), (14, 5756480), (16, 5036920), (20, 4029536), (28, 2878240), (32, 2518460), (35, 2302592), (40, 2014768), (56, 1439120), (64, 1259230), (70, 1151296), (80, 1007384), (112, 719560), (128, 629615), (140, 575648), (160, 503692), (224, 359780), (280, 287824), (320, 251846), (448, 179890), (560, 143912), (640, 125923), (896, 89945), (1120, 71956), (2240, 35978), (4480, 17989)]