20045900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{4091}}^1$

素因数の和:4119

約数の個数: 54

約数和(自身を含む): 50613948

約数和(自身を除く): 30568048

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4091, 4900, 8182, 16364, 20455, 28637, 40910, 57274, 81820, 102275, 114548, 143185, 200459, 204550, 286370, 400918, 409100, 572740, 715925, 801836, 1002295, 1431850, 2004590, 2863700, 4009180, 5011475, 10022950, 20045900]

約数ペア:

[(1, 20045900), (2, 10022950), (4, 5011475), (5, 4009180), (7, 2863700), (10, 2004590), (14, 1431850), (20, 1002295), (25, 801836), (28, 715925), (35, 572740), (49, 409100), (50, 400918), (70, 286370), (98, 204550), (100, 200459), (140, 143185), (175, 114548), (196, 102275), (245, 81820), (350, 57274), (490, 40910), (700, 28637), (980, 20455), (1225, 16364), (2450, 8182), (4091, 4900)]