28507428

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 74850048

約数和(自身を除く): 46342620

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 67, 106, 134, 159, 201, 212, 223, 268, 318, 402, 446, 477, 603, 636, 669, 804, 892, 954, 1206, 1338, 1908, 2007, 2412, 2676, 3551, 4014, 7102, 8028, 10653, 11819, 14204, 14941, 21306, 23638, 29882, 31959, 35457, 42612, 44823, 47276, 59764, 63918, 70914, 89646, 106371, 127836, 134469, 141828, 179292, 212742, 268938, 425484, 537876, 791873, 1583746, 2375619, 3167492, 4751238, 7126857, 9502476, 14253714, 28507428]

約数ペア:

[(1, 28507428), (2, 14253714), (3, 9502476), (4, 7126857), (6, 4751238), (9, 3167492), (12, 2375619), (18, 1583746), (36, 791873), (53, 537876), (67, 425484), (106, 268938), (134, 212742), (159, 179292), (201, 141828), (212, 134469), (223, 127836), (268, 106371), (318, 89646), (402, 70914), (446, 63918), (477, 59764), (603, 47276), (636, 44823), (669, 42612), (804, 35457), (892, 31959), (954, 29882), (1206, 23638), (1338, 21306), (1908, 14941), (2007, 14204), (2412, 11819), (2676, 10653), (3551, 8028), (4014, 7102)]