4001205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 7426944

約数和(自身を除く): 3425739

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 71, 85, 195, 213, 221, 255, 289, 355, 663, 867, 923, 1065, 1105, 1207, 1445, 2769, 3315, 3621, 3757, 4335, 4615, 6035, 11271, 13845, 15691, 18105, 18785, 20519, 47073, 56355, 61557, 78455, 102595, 235365, 266747, 307785, 800241, 1333735, 4001205]

約数ペア:

[(1, 4001205), (3, 1333735), (5, 800241), (13, 307785), (15, 266747), (17, 235365), (39, 102595), (51, 78455), (65, 61557), (71, 56355), (85, 47073), (195, 20519), (213, 18785), (221, 18105), (255, 15691), (289, 13845), (355, 11271), (663, 6035), (867, 4615), (923, 4335), (1065, 3757), (1105, 3621), (1207, 3315), (1445, 2769)]