25005220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1301}}^1$

素因数の和:1372

約数の個数: 36

約数和(自身を含む): 54301212

約数和(自身を除く): 29295992

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1301, 1922, 2602, 3844, 4805, 5204, 6505, 9610, 13010, 19220, 26020, 40331, 80662, 161324, 201655, 403310, 806620, 1250261, 2500522, 5001044, 6251305, 12502610, 25005220]

約数ペア:

[(1, 25005220), (2, 12502610), (4, 6251305), (5, 5001044), (10, 2500522), (20, 1250261), (31, 806620), (62, 403310), (124, 201655), (155, 161324), (310, 80662), (620, 40331), (961, 26020), (1301, 19220), (1922, 13010), (2602, 9610), (3844, 6505), (4805, 5204)]