28578342

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 65028096

約数和(自身を除く): 36449754

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 53, 62, 78, 93, 106, 159, 186, 223, 318, 403, 446, 669, 689, 806, 1209, 1338, 1378, 1643, 2067, 2418, 2899, 3286, 4134, 4929, 5798, 6913, 8697, 9858, 11819, 13826, 17394, 20739, 21359, 23638, 35457, 41478, 42718, 64077, 70914, 89869, 128154, 153647, 179738, 269607, 307294, 366389, 460941, 539214, 732778, 921882, 1099167, 2198334, 4763057, 9526114, 14289171, 28578342]

約数ペア:

[(1, 28578342), (2, 14289171), (3, 9526114), (6, 4763057), (13, 2198334), (26, 1099167), (31, 921882), (39, 732778), (53, 539214), (62, 460941), (78, 366389), (93, 307294), (106, 269607), (159, 179738), (186, 153647), (223, 128154), (318, 89869), (403, 70914), (446, 64077), (669, 42718), (689, 41478), (806, 35457), (1209, 23638), (1338, 21359), (1378, 20739), (1643, 17394), (2067, 13826), (2418, 11819), (2899, 9858), (3286, 8697), (4134, 6913), (4929, 5798)]