28587520

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{859}}^1$

素因数の和:895

約数の個数: 80

約数和(自身を含む): 73901520

約数和(自身を除く): 45314000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 859, 1040, 1280, 1664, 1718, 2080, 2560, 3328, 3436, 4160, 4295, 6656, 6872, 8320, 8590, 11167, 13744, 16640, 17180, 22334, 27488, 33280, 34360, 44668, 54976, 55835, 68720, 89336, 109952, 111670, 137440, 178672, 219904, 223340, 274880, 357344, 439808, 446680, 549760, 714688, 893360, 1099520, 1429376, 1786720, 2199040, 2858752, 3573440, 5717504, 7146880, 14293760, 28587520]

約数ペア:

[(1, 28587520), (2, 14293760), (4, 7146880), (5, 5717504), (8, 3573440), (10, 2858752), (13, 2199040), (16, 1786720), (20, 1429376), (26, 1099520), (32, 893360), (40, 714688), (52, 549760), (64, 446680), (65, 439808), (80, 357344), (104, 274880), (128, 223340), (130, 219904), (160, 178672), (208, 137440), (256, 111670), (260, 109952), (320, 89336), (416, 68720), (512, 55835), (520, 54976), (640, 44668), (832, 34360), (859, 33280), (1040, 27488), (1280, 22334), (1664, 17180), (1718, 16640), (2080, 13744), (2560, 11167), (3328, 8590), (3436, 8320), (4160, 6872), (4295, 6656)]