2783149775

素因数分解:

$5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{883}}^1$

素因数の和:1021

約数の個数: 72

約数和(自身を含む): 4198731264

約数和(自身を除く): 1415581489

約数列:

[1, 5, 7, 25, 31, 35, 49, 83, 155, 175, 217, 245, 415, 581, 775, 883, 1085, 1225, 1519, 2075, 2573, 2905, 4067, 4415, 5425, 6181, 7595, 12865, 14525, 18011, 20335, 22075, 27373, 30905, 37975, 43267, 64325, 73289, 90055, 101675, 126077, 136865, 154525, 191611, 216335, 366445, 450275, 513023, 630385, 684325, 958055, 1081675, 1341277, 1832225, 2271959, 2565115, 3151925, 3591161, 4790275, 6706385, 11359795, 12825575, 15903713, 17955805, 33531925, 56798975, 79518565, 89779025, 111325991, 397592825, 556629955, 2783149775]

約数ペア:

[(1, 2783149775), (5, 556629955), (7, 397592825), (25, 111325991), (31, 89779025), (35, 79518565), (49, 56798975), (83, 33531925), (155, 17955805), (175, 15903713), (217, 12825575), (245, 11359795), (415, 6706385), (581, 4790275), (775, 3591161), (883, 3151925), (1085, 2565115), (1225, 2271959), (1519, 1832225), (2075, 1341277), (2573, 1081675), (2905, 958055), (4067, 684325), (4415, 630385), (5425, 513023), (6181, 450275), (7595, 366445), (12865, 216335), (14525, 191611), (18011, 154525), (20335, 136865), (22075, 126077), (27373, 101675), (30905, 90055), (37975, 73289), (43267, 64325)]