28978304

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 61036800

約数和(自身を除く): 32058496

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 109, 124, 128, 134, 218, 248, 268, 436, 496, 536, 872, 992, 1072, 1744, 1984, 2077, 2144, 3379, 3488, 3968, 4154, 4288, 6758, 6976, 7303, 8308, 8576, 13516, 13952, 14606, 16616, 27032, 29212, 33232, 54064, 58424, 66464, 108128, 116848, 132928, 216256, 226393, 233696, 265856, 432512, 452786, 467392, 905572, 934784, 1811144, 3622288, 7244576, 14489152, 28978304]

約数ペア:

[(1, 28978304), (2, 14489152), (4, 7244576), (8, 3622288), (16, 1811144), (31, 934784), (32, 905572), (62, 467392), (64, 452786), (67, 432512), (109, 265856), (124, 233696), (128, 226393), (134, 216256), (218, 132928), (248, 116848), (268, 108128), (436, 66464), (496, 58424), (536, 54064), (872, 33232), (992, 29212), (1072, 27032), (1744, 16616), (1984, 14606), (2077, 13952), (2144, 13516), (3379, 8576), (3488, 8308), (3968, 7303), (4154, 6976), (4288, 6758)]