20097145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 7274375

約数列:

[1, 5, 17, 29, 31, 85, 145, 155, 263, 493, 527, 899, 1315, 2465, 2635, 4471, 4495, 7627, 8153, 15283, 22355, 38135, 40765, 76415, 129659, 138601, 236437, 648295, 693005, 1182185, 4019429, 20097145]

約数ペア:

[(1, 20097145), (5, 4019429), (17, 1182185), (29, 693005), (31, 648295), (85, 236437), (145, 138601), (155, 129659), (263, 76415), (493, 40765), (527, 38135), (899, 22355), (1315, 15283), (2465, 8153), (2635, 7627), (4471, 4495)]