81885405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{827}}^1$

素因数の和:906

約数の個数: 64

約数和(自身を含む): 160247808

約数和(自身を除く): 78362403

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 41, 69, 105, 115, 123, 161, 205, 287, 345, 483, 615, 805, 827, 861, 943, 1435, 2415, 2481, 2829, 4135, 4305, 4715, 5789, 6601, 12405, 14145, 17367, 19021, 19803, 28945, 33005, 33907, 57063, 86835, 95105, 99015, 101721, 133147, 169535, 237349, 285315, 399441, 508605, 665735, 712047, 779861, 1186745, 1997205, 2339583, 3560235, 3899305, 5459027, 11697915, 16377081, 27295135, 81885405]

約数ペア:

[(1, 81885405), (3, 27295135), (5, 16377081), (7, 11697915), (15, 5459027), (21, 3899305), (23, 3560235), (35, 2339583), (41, 1997205), (69, 1186745), (105, 779861), (115, 712047), (123, 665735), (161, 508605), (205, 399441), (287, 285315), (345, 237349), (483, 169535), (615, 133147), (805, 101721), (827, 99015), (861, 95105), (943, 86835), (1435, 57063), (2415, 33907), (2481, 33005), (2829, 28945), (4135, 19803), (4305, 19021), (4715, 17367), (5789, 14145), (6601, 12405)]