164079280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66161}}^1$

素因数の和:66205

約数の個数: 40

約数和(自身を含む): 393796224

約数和(自身を除く): 229716944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 66161, 132322, 264644, 330805, 529288, 661610, 1058576, 1323220, 2050991, 2646440, 4101982, 5292880, 8203964, 10254955, 16407928, 20509910, 32815856, 41019820, 82039640, 164079280]

約数ペア:

[(1, 164079280), (2, 82039640), (4, 41019820), (5, 32815856), (8, 20509910), (10, 16407928), (16, 10254955), (20, 8203964), (31, 5292880), (40, 4101982), (62, 2646440), (80, 2050991), (124, 1323220), (155, 1058576), (248, 661610), (310, 529288), (496, 330805), (620, 264644), (1240, 132322), (2480, 66161)]