77405680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87961}}^1$

素因数の和:87985

約数の個数: 40

約数和(自身を含む): 196331184

約数和(自身を除く): 118925504

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 87961, 175922, 351844, 439805, 703688, 879610, 967571, 1407376, 1759220, 1935142, 3518440, 3870284, 4837855, 7036880, 7740568, 9675710, 15481136, 19351420, 38702840, 77405680]

約数ペア:

[(1, 77405680), (2, 38702840), (4, 19351420), (5, 15481136), (8, 9675710), (10, 7740568), (11, 7036880), (16, 4837855), (20, 3870284), (22, 3518440), (40, 1935142), (44, 1759220), (55, 1407376), (80, 967571), (88, 879610), (110, 703688), (176, 439805), (220, 351844), (440, 175922), (880, 87961)]