208897255

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{977}}^1$

素因数の和:1179

約数の個数: 32

約数和(自身を含む): 295747200

約数和(自身を除く): 86849945

約数列:

[1, 5, 7, 35, 41, 149, 205, 287, 745, 977, 1043, 1435, 4885, 5215, 6109, 6839, 30545, 34195, 40057, 42763, 145573, 200285, 213815, 280399, 727865, 1019011, 1401995, 5095055, 5968493, 29842465, 41779451, 208897255]

約数ペア:

[(1, 208897255), (5, 41779451), (7, 29842465), (35, 5968493), (41, 5095055), (149, 1401995), (205, 1019011), (287, 727865), (745, 280399), (977, 213815), (1043, 200285), (1435, 145573), (4885, 42763), (5215, 40057), (6109, 34195), (6839, 30545)]