2012130175

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:605

約数の個数: 72

約数和(自身を含む): 2902592000

約数和(自身を除く): 890461825

約数列:

[1, 5, 11, 25, 31, 43, 55, 121, 155, 215, 275, 341, 473, 499, 605, 775, 1075, 1333, 1705, 2365, 2495, 3025, 3751, 5203, 5489, 6665, 8525, 11825, 12475, 14663, 15469, 18755, 21457, 26015, 27445, 33325, 60379, 73315, 77345, 93775, 107285, 130075, 137225, 161293, 170159, 236027, 301895, 366575, 386725, 536425, 665167, 806465, 850795, 1180135, 1509475, 1871749, 2596297, 3325835, 4032325, 4253975, 5900675, 7316837, 9358745, 12981485, 16629175, 36584185, 46793725, 64907425, 80485207, 182920925, 402426035, 2012130175]

約数ペア:

[(1, 2012130175), (5, 402426035), (11, 182920925), (25, 80485207), (31, 64907425), (43, 46793725), (55, 36584185), (121, 16629175), (155, 12981485), (215, 9358745), (275, 7316837), (341, 5900675), (473, 4253975), (499, 4032325), (605, 3325835), (775, 2596297), (1075, 1871749), (1333, 1509475), (1705, 1180135), (2365, 850795), (2495, 806465), (3025, 665167), (3751, 536425), (5203, 386725), (5489, 366575), (6665, 301895), (8525, 236027), (11825, 170159), (12475, 161293), (14663, 137225), (15469, 130075), (18755, 107285), (21457, 93775), (26015, 77345), (27445, 73315), (33325, 60379)]