20782950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{349}}^1\times {\mathrm{397}}^1$

素因数の和:761

約数の個数: 48

約数和(自身を含む): 51819600

約数和(自身を除く): 31036650

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 349, 397, 698, 794, 1047, 1191, 1745, 1985, 2094, 2382, 3490, 3970, 5235, 5955, 8725, 9925, 10470, 11910, 17450, 19850, 26175, 29775, 52350, 59550, 138553, 277106, 415659, 692765, 831318, 1385530, 2078295, 3463825, 4156590, 6927650, 10391475, 20782950]

約数ペア:

[(1, 20782950), (2, 10391475), (3, 6927650), (5, 4156590), (6, 3463825), (10, 2078295), (15, 1385530), (25, 831318), (30, 692765), (50, 415659), (75, 277106), (150, 138553), (349, 59550), (397, 52350), (698, 29775), (794, 26175), (1047, 19850), (1191, 17450), (1745, 11910), (1985, 10470), (2094, 9925), (2382, 8725), (3490, 5955), (3970, 5235)]