28070145

素因数分解:

$3^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 53844480

約数和(自身を除く): 25774335

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 151, 153, 243, 255, 405, 453, 459, 729, 755, 765, 1215, 1359, 1377, 2187, 2265, 2295, 2567, 3645, 4077, 4131, 6795, 6885, 7701, 10935, 12231, 12393, 12835, 20385, 20655, 23103, 36693, 37179, 38505, 61155, 61965, 69309, 110079, 115515, 183465, 185895, 207927, 330237, 346545, 550395, 623781, 1039635, 1651185, 1871343, 3118905, 5614029, 9356715, 28070145]

約数ペア:

[(1, 28070145), (3, 9356715), (5, 5614029), (9, 3118905), (15, 1871343), (17, 1651185), (27, 1039635), (45, 623781), (51, 550395), (81, 346545), (85, 330237), (135, 207927), (151, 185895), (153, 183465), (243, 115515), (255, 110079), (405, 69309), (453, 61965), (459, 61155), (729, 38505), (755, 37179), (765, 36693), (1215, 23103), (1359, 20655), (1377, 20385), (2187, 12835), (2265, 12393), (2295, 12231), (2567, 10935), (3645, 7701), (4077, 6885), (4131, 6795)]