28445185

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 37699200

約数和(自身を除く): 9254015

約数列:

[1, 5, 19, 41, 67, 95, 109, 205, 335, 545, 779, 1273, 2071, 2747, 3895, 4469, 6365, 7303, 10355, 13735, 22345, 36515, 52193, 84911, 138757, 260965, 299423, 424555, 693785, 1497115, 5689037, 28445185]

約数ペア:

[(1, 28445185), (5, 5689037), (19, 1497115), (41, 693785), (67, 424555), (95, 299423), (109, 260965), (205, 138757), (335, 84911), (545, 52193), (779, 36515), (1273, 22345), (2071, 13735), (2747, 10355), (3895, 7303), (4469, 6365)]