20817264

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 58836512

約数和(自身を除く): 38019248

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 73, 78, 104, 146, 156, 208, 219, 292, 312, 438, 457, 584, 624, 876, 914, 949, 1168, 1371, 1752, 1828, 1898, 2742, 2847, 3504, 3656, 3796, 5484, 5694, 5941, 7312, 7592, 10968, 11388, 11882, 15184, 17823, 21936, 22776, 23764, 33361, 35646, 45552, 47528, 66722, 71292, 95056, 100083, 133444, 142584, 200166, 266888, 285168, 400332, 433693, 533776, 800664, 867386, 1301079, 1601328, 1734772, 2602158, 3469544, 5204316, 6939088, 10408632, 20817264]

約数ペア:

[(1, 20817264), (2, 10408632), (3, 6939088), (4, 5204316), (6, 3469544), (8, 2602158), (12, 1734772), (13, 1601328), (16, 1301079), (24, 867386), (26, 800664), (39, 533776), (48, 433693), (52, 400332), (73, 285168), (78, 266888), (104, 200166), (146, 142584), (156, 133444), (208, 100083), (219, 95056), (292, 71292), (312, 66722), (438, 47528), (457, 45552), (584, 35646), (624, 33361), (876, 23764), (914, 22776), (949, 21936), (1168, 17823), (1371, 15184), (1752, 11882), (1828, 11388), (1898, 10968), (2742, 7592), (2847, 7312), (3504, 5941), (3656, 5694), (3796, 5484)]