209085565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 278530560

約数和(自身を除く): 69444995

約数列:

[1, 5, 13, 43, 65, 215, 239, 313, 559, 1195, 1565, 2795, 3107, 4069, 10277, 13459, 15535, 20345, 51385, 67295, 74807, 133601, 174967, 374035, 668005, 874835, 972491, 3216701, 4862455, 16083505, 41817113, 209085565]

約数ペア:

[(1, 209085565), (5, 41817113), (13, 16083505), (43, 4862455), (65, 3216701), (215, 972491), (239, 874835), (313, 668005), (559, 374035), (1195, 174967), (1565, 133601), (2795, 74807), (3107, 67295), (4069, 51385), (10277, 20345), (13459, 15535)]