128340045

素因数分解:

$3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 241496640

約数和(自身を除く): 113156595

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 59, 81, 123, 131, 135, 177, 205, 295, 369, 393, 405, 531, 615, 655, 885, 1107, 1179, 1593, 1845, 1965, 2419, 2655, 3321, 3537, 4779, 5371, 5535, 5895, 7257, 7729, 7965, 10611, 12095, 16113, 16605, 17685, 21771, 23187, 23895, 26855, 36285, 38645, 48339, 53055, 65313, 69561, 80565, 108855, 115935, 145017, 195939, 208683, 241695, 316889, 326565, 347805, 435051, 626049, 725085, 950667, 979695, 1043415, 1584445, 2175255, 2852001, 3130245, 4753335, 8556003, 14260005, 25668009, 42780015, 128340045]

約数ペア:

[(1, 128340045), (3, 42780015), (5, 25668009), (9, 14260005), (15, 8556003), (27, 4753335), (41, 3130245), (45, 2852001), (59, 2175255), (81, 1584445), (123, 1043415), (131, 979695), (135, 950667), (177, 725085), (205, 626049), (295, 435051), (369, 347805), (393, 326565), (405, 316889), (531, 241695), (615, 208683), (655, 195939), (885, 145017), (1107, 115935), (1179, 108855), (1593, 80565), (1845, 69561), (1965, 65313), (2419, 53055), (2655, 48339), (3321, 38645), (3537, 36285), (4779, 26855), (5371, 23895), (5535, 23187), (5895, 21771), (7257, 17685), (7729, 16605), (7965, 16113), (10611, 12095)]