20100375

素因数分解:

$3^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{1051}}^1$

素因数の和:1089

約数の個数: 48

約数和(自身を含む): 38402208

約数和(自身を除く): 18301833

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 125, 153, 225, 255, 375, 425, 765, 1051, 1125, 1275, 2125, 3153, 3825, 5255, 6375, 9459, 15765, 17867, 19125, 26275, 47295, 53601, 78825, 89335, 131375, 160803, 236475, 268005, 394125, 446675, 804015, 1182375, 1340025, 2233375, 4020075, 6700125, 20100375]

約数ペア:

[(1, 20100375), (3, 6700125), (5, 4020075), (9, 2233375), (15, 1340025), (17, 1182375), (25, 804015), (45, 446675), (51, 394125), (75, 268005), (85, 236475), (125, 160803), (153, 131375), (225, 89335), (255, 78825), (375, 53601), (425, 47295), (765, 26275), (1051, 19125), (1125, 17867), (1275, 15765), (2125, 9459), (3153, 6375), (3825, 5255)]