18766480

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8089}}^1$

素因数の和:8131

約数の個数: 40

約数和(自身を含む): 45142200

約数和(自身を除く): 26375720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8089, 16178, 32356, 40445, 64712, 80890, 129424, 161780, 234581, 323560, 469162, 647120, 938324, 1172905, 1876648, 2345810, 3753296, 4691620, 9383240, 18766480]

約数ペア:

[(1, 18766480), (2, 9383240), (4, 4691620), (5, 3753296), (8, 2345810), (10, 1876648), (16, 1172905), (20, 938324), (29, 647120), (40, 469162), (58, 323560), (80, 234581), (116, 161780), (145, 129424), (232, 80890), (290, 64712), (464, 40445), (580, 32356), (1160, 16178), (2320, 8089)]