220255

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 24

約数和(自身を含む): 328320

約数和(自身を除く): 108065

約数列:

[1, 5, 7, 29, 31, 35, 49, 145, 155, 203, 217, 245, 899, 1015, 1085, 1421, 1519, 4495, 6293, 7105, 7595, 31465, 44051, 220255]

約数ペア:

[(1, 220255), (5, 44051), (7, 31465), (29, 7595), (31, 7105), (35, 6293), (49, 4495), (145, 1519), (155, 1421), (203, 1085), (217, 1015), (245, 899)]