654872144

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{397}}^1\times {\mathrm{787}}^1$

素因数の和:1323

約数の個数: 40

約数和(自身を含む): 1283349408

約数和(自身を除く): 628477264

約数列:

[1, 2, 4, 8, 16, 131, 262, 397, 524, 787, 794, 1048, 1574, 1588, 2096, 3148, 3176, 6296, 6352, 12592, 52007, 103097, 104014, 206194, 208028, 312439, 412388, 416056, 624878, 824776, 832112, 1249756, 1649552, 2499512, 4999024, 40929509, 81859018, 163718036, 327436072, 654872144]

約数ペア:

[(1, 654872144), (2, 327436072), (4, 163718036), (8, 81859018), (16, 40929509), (131, 4999024), (262, 2499512), (397, 1649552), (524, 1249756), (787, 832112), (794, 824776), (1048, 624878), (1574, 416056), (1588, 412388), (2096, 312439), (3148, 208028), (3176, 206194), (6296, 104014), (6352, 103097), (12592, 52007)]