81287964

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{61027}}^1$

素因数の和:61074

約数の個数: 36

約数和(自身を含む): 211034824

約数和(自身を除く): 129746860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 61027, 122054, 183081, 244108, 366162, 549243, 732324, 1098486, 2196972, 2257999, 4515998, 6773997, 9031996, 13547994, 20321991, 27095988, 40643982, 81287964]

約数ペア:

[(1, 81287964), (2, 40643982), (3, 27095988), (4, 20321991), (6, 13547994), (9, 9031996), (12, 6773997), (18, 4515998), (36, 2257999), (37, 2196972), (74, 1098486), (111, 732324), (148, 549243), (222, 366162), (333, 244108), (444, 183081), (666, 122054), (1332, 61027)]