25504940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1327}}^1$

素因数の和:1398

約数の個数: 36

約数和(自身を含む): 55385568

約数和(自身を除く): 29880628

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1327, 1922, 2654, 3844, 4805, 5308, 6635, 9610, 13270, 19220, 26540, 41137, 82274, 164548, 205685, 411370, 822740, 1275247, 2550494, 5100988, 6376235, 12752470, 25504940]

約数ペア:

[(1, 25504940), (2, 12752470), (4, 6376235), (5, 5100988), (10, 2550494), (20, 1275247), (31, 822740), (62, 411370), (124, 205685), (155, 164548), (310, 82274), (620, 41137), (961, 26540), (1327, 19220), (1922, 13270), (2654, 9610), (3844, 6635), (4805, 5308)]