20301500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2137}}^1$

素因数の和:2175

約数の個数: 48

約数和(自身を含む): 46693920

約数和(自身を除く): 26392420

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 2137, 2375, 4274, 4750, 8548, 9500, 10685, 21370, 40603, 42740, 53425, 81206, 106850, 162412, 203015, 213700, 267125, 406030, 534250, 812060, 1015075, 1068500, 2030150, 4060300, 5075375, 10150750, 20301500]

約数ペア:

[(1, 20301500), (2, 10150750), (4, 5075375), (5, 4060300), (10, 2030150), (19, 1068500), (20, 1015075), (25, 812060), (38, 534250), (50, 406030), (76, 267125), (95, 213700), (100, 203015), (125, 162412), (190, 106850), (250, 81206), (380, 53425), (475, 42740), (500, 40603), (950, 21370), (1900, 10685), (2137, 9500), (2375, 8548), (4274, 4750)]