20112955

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 26524800

約数和(自身を除く): 6411845

約数列:

[1, 5, 17, 31, 85, 155, 289, 449, 527, 1445, 2245, 2635, 7633, 8959, 13919, 38165, 44795, 69595, 129761, 236623, 648805, 1183115, 4022591, 20112955]

約数ペア:

[(1, 20112955), (5, 4022591), (17, 1183115), (31, 648805), (85, 236623), (155, 129761), (289, 69595), (449, 44795), (527, 38165), (1445, 13919), (2245, 8959), (2635, 7633)]