72019955

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^2\times {\mathrm{79}}^1$

素因数の和:220

約数の個数: 36

約数和(自身を含む): 103502880

約数和(自身を除く): 31482925

約数列:

[1, 5, 7, 35, 49, 61, 79, 245, 305, 395, 427, 553, 2135, 2765, 2989, 3721, 3871, 4819, 14945, 18605, 19355, 24095, 26047, 33733, 130235, 168665, 182329, 236131, 293959, 911645, 1180655, 1469795, 2057713, 10288565, 14403991, 72019955]

約数ペア:

[(1, 72019955), (5, 14403991), (7, 10288565), (35, 2057713), (49, 1469795), (61, 1180655), (79, 911645), (245, 293959), (305, 236131), (395, 182329), (427, 168665), (553, 130235), (2135, 33733), (2765, 26047), (2989, 24095), (3721, 19355), (3871, 18605), (4819, 14945)]