164515760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66337}}^1$

素因数の和:66381

約数の個数: 40

約数和(自身を含む): 394843776

約数和(自身を除く): 230328016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 66337, 132674, 265348, 331685, 530696, 663370, 1061392, 1326740, 2056447, 2653480, 4112894, 5306960, 8225788, 10282235, 16451576, 20564470, 32903152, 41128940, 82257880, 164515760]

約数ペア:

[(1, 164515760), (2, 82257880), (4, 41128940), (5, 32903152), (8, 20564470), (10, 16451576), (16, 10282235), (20, 8225788), (31, 5306960), (40, 4112894), (62, 2653480), (80, 2056447), (124, 1326740), (155, 1061392), (248, 663370), (310, 530696), (496, 331685), (620, 265348), (1240, 132674), (2480, 66337)]