199680455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2417}}^1$

素因数の和:2507

約数の個数: 32

約数和(自身を含む): 272982528

約数和(自身を除く): 73302073

約数列:

[1, 5, 13, 31, 41, 65, 155, 205, 403, 533, 1271, 2015, 2417, 2665, 6355, 12085, 16523, 31421, 74927, 82615, 99097, 157105, 374635, 495485, 974051, 1288261, 3072007, 4870255, 6441305, 15360035, 39936091, 199680455]

約数ペア:

[(1, 199680455), (5, 39936091), (13, 15360035), (31, 6441305), (41, 4870255), (65, 3072007), (155, 1288261), (205, 974051), (403, 495485), (533, 374635), (1271, 157105), (2015, 99097), (2417, 82615), (2665, 74927), (6355, 31421), (12085, 16523)]