20454655

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 28413504

約数和(自身を除く): 7958849

約数列:

[1, 5, 13, 17, 65, 85, 107, 173, 221, 535, 865, 1105, 1391, 1819, 2249, 2941, 6955, 9095, 11245, 14705, 18511, 23647, 38233, 92555, 118235, 191165, 240643, 314687, 1203215, 1573435, 4090931, 20454655]

約数ペア:

[(1, 20454655), (5, 4090931), (13, 1573435), (17, 1203215), (65, 314687), (85, 240643), (107, 191165), (173, 118235), (221, 92555), (535, 38233), (865, 23647), (1105, 18511), (1391, 14705), (1819, 11245), (2249, 9095), (2941, 6955)]