1216400185

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{5171}}^1$

素因数の和:5254

約数の個数: 64

約数和(自身を含む): 2001936384

約数和(自身を除く): 785536199

約数列:

[1, 5, 7, 11, 13, 35, 47, 55, 65, 77, 91, 143, 235, 329, 385, 455, 517, 611, 715, 1001, 1645, 2585, 3055, 3619, 4277, 5005, 5171, 6721, 18095, 21385, 25855, 33605, 36197, 47047, 56881, 67223, 180985, 235235, 243037, 284405, 336115, 398167, 470561, 739453, 1215185, 1701259, 1990835, 2352805, 2673407, 3159481, 3697265, 5176171, 8506295, 13367035, 15797405, 18713849, 22116367, 25880855, 34754291, 93569245, 110581835, 173771455, 243280037, 1216400185]

約数ペア:

[(1, 1216400185), (5, 243280037), (7, 173771455), (11, 110581835), (13, 93569245), (35, 34754291), (47, 25880855), (55, 22116367), (65, 18713849), (77, 15797405), (91, 13367035), (143, 8506295), (235, 5176171), (329, 3697265), (385, 3159481), (455, 2673407), (517, 2352805), (611, 1990835), (715, 1701259), (1001, 1215185), (1645, 739453), (2585, 470561), (3055, 398167), (3619, 336115), (4277, 284405), (5005, 243037), (5171, 235235), (6721, 180985), (18095, 67223), (21385, 56881), (25855, 47047), (33605, 36197)]