2011920925

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:347

約数の個数: 96

約数和(自身を含む): 3142656000

約数和(自身を除く): 1130735075

約数列:

[1, 5, 7, 19, 25, 31, 35, 95, 131, 133, 149, 155, 175, 217, 475, 589, 655, 665, 745, 775, 917, 1043, 1085, 2489, 2831, 2945, 3275, 3325, 3725, 4061, 4123, 4585, 4619, 5215, 5425, 12445, 14155, 14725, 17423, 19519, 19817, 20305, 20615, 22925, 23095, 26075, 28427, 32333, 62225, 70775, 77159, 87115, 87761, 97595, 99085, 101525, 103075, 115475, 136633, 142135, 161665, 370861, 385795, 435575, 438805, 487975, 495425, 540113, 605089, 614327, 683165, 710675, 808325, 1854305, 1928975, 2194025, 2596027, 2700565, 3025445, 3071635, 3415825, 4235623, 9271525, 11496691, 12980135, 13502825, 15127225, 15358175, 21178115, 57483455, 64900675, 80476837, 105890575, 287417275, 402384185, 2011920925]

約数ペア:

[(1, 2011920925), (5, 402384185), (7, 287417275), (19, 105890575), (25, 80476837), (31, 64900675), (35, 57483455), (95, 21178115), (131, 15358175), (133, 15127225), (149, 13502825), (155, 12980135), (175, 11496691), (217, 9271525), (475, 4235623), (589, 3415825), (655, 3071635), (665, 3025445), (745, 2700565), (775, 2596027), (917, 2194025), (1043, 1928975), (1085, 1854305), (2489, 808325), (2831, 710675), (2945, 683165), (3275, 614327), (3325, 605089), (3725, 540113), (4061, 495425), (4123, 487975), (4585, 438805), (4619, 435575), (5215, 385795), (5425, 370861), (12445, 161665), (14155, 142135), (14725, 136633), (17423, 115475), (19519, 103075), (19817, 101525), (20305, 99085), (20615, 97595), (22925, 87761), (23095, 87115), (26075, 77159), (28427, 70775), (32333, 62225)]