20568500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1327}}^1$

素因数の和:1377

約数の個数: 48

約数和(自身を含む): 46405632

約数和(自身を除く): 25837132

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 775, 1327, 1550, 2654, 3100, 3875, 5308, 6635, 7750, 13270, 15500, 26540, 33175, 41137, 66350, 82274, 132700, 164548, 165875, 205685, 331750, 411370, 663500, 822740, 1028425, 2056850, 4113700, 5142125, 10284250, 20568500]

約数ペア:

[(1, 20568500), (2, 10284250), (4, 5142125), (5, 4113700), (10, 2056850), (20, 1028425), (25, 822740), (31, 663500), (50, 411370), (62, 331750), (100, 205685), (124, 165875), (125, 164548), (155, 132700), (250, 82274), (310, 66350), (500, 41137), (620, 33175), (775, 26540), (1327, 15500), (1550, 13270), (2654, 7750), (3100, 6635), (3875, 5308)]