290790081

素因数分解:

$3^8\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 476146944

約数和(自身を除く): 185356863

約数列:

[1, 3, 9, 23, 27, 41, 47, 69, 81, 123, 141, 207, 243, 369, 423, 621, 729, 943, 1081, 1107, 1269, 1863, 1927, 2187, 2829, 3243, 3321, 3807, 5589, 5781, 6561, 8487, 9729, 9963, 11421, 16767, 17343, 25461, 29187, 29889, 34263, 44321, 50301, 52029, 76383, 87561, 89667, 102789, 132963, 150903, 156087, 229149, 262683, 269001, 308367, 398889, 468261, 687447, 788049, 1196667, 1404783, 2062341, 2364147, 3590001, 4214349, 6187023, 7092441, 10770003, 12643047, 32310009, 96930027, 290790081]

約数ペア:

[(1, 290790081), (3, 96930027), (9, 32310009), (23, 12643047), (27, 10770003), (41, 7092441), (47, 6187023), (69, 4214349), (81, 3590001), (123, 2364147), (141, 2062341), (207, 1404783), (243, 1196667), (369, 788049), (423, 687447), (621, 468261), (729, 398889), (943, 308367), (1081, 269001), (1107, 262683), (1269, 229149), (1863, 156087), (1927, 150903), (2187, 132963), (2829, 102789), (3243, 89667), (3321, 87561), (3807, 76383), (5589, 52029), (5781, 50301), (6561, 44321), (8487, 34263), (9729, 29889), (9963, 29187), (11421, 25461), (16767, 17343)]